CVE-2020-1045

mediumpriority · track · 22EPSS 0.059 · 93 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

5.93% (93rd) EPSS

CVSS 5 · medium

Is it mine?

90 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · osv

EPSS · scored 2026-10-26

A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names. The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded. The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

Fixedrh-dotnet31-aspnetcore-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-aspnetcore-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-aspnetcore-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-aspnetcore-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-aspnetcore-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-aspnetcore-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.src as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.src as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.src as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-apphost-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-apphost-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-apphost-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-debuginfo-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-debuginfo-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-debuginfo-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-host-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-host-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-host-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-hostfxr-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-hostfxr-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-hostfxr-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-runtime-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-sdk-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-sdk-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-sdk-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-targeting-pack-3.1-0:3.1.8-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-templates-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-templates-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-dotnet-templates-3.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-netstandard-targeting-pack-2.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux ComputeNode (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-netstandard-targeting-pack-2.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Server (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedrh-dotnet31-netstandard-targeting-pack-2.1-0:3.1.108-1.el7.x86_64 as a component of .NET Core on Red Hat Enterprise Linux Workstation (v. 7)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3697
Fixedaspnetcore-runtime-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixedaspnetcore-targeting-pack-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-apphost-pack-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-apphost-pack-3.1-debuginfo-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-host-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-host-debuginfo-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-hostfxr-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-hostfxr-3.1-debuginfo-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-runtime-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-runtime-3.1-debuginfo-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-sdk-3.1-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-sdk-3.1-debuginfo-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-targeting-pack-3.1-0:3.1.8-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet-templates-3.1-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet3.1-0:3.1.108-2.el8_2.src as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet3.1-debuginfo-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixeddotnet3.1-debugsource-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699
Fixednetstandard-targeting-pack-2.1-0:3.1.108-2.el8_2.x86_64 as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2020:3699

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.3–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:P/A:Nprimary · NVD / NIST USexploitability 10 · impact 2.9

v2.04.3mediumAV:N/AC:L/Au:N/C:N/I:P/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:P/RL:O/RC:Csecondary · ENISA EU

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · secure@microsoft.com USexploitability 3.9 · impact 3.6

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · OSV

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · Red Hat Product Security US

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · NVD / NIST USexploitability 3.9 · impact 3.6

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USCWE-807US

affected products (90)

Products and version ranges known to be affected.

Microsoft ASP.NET Core 2.12.0 → publicationenisa_euvdEU
Microsoft ASP.NET Core 3.13.0 → publicationenisa_euvdEU
Microsoft Corp ASP.NET Core≤ 3.1fstec_bduRU
Microsoft Corp ASP.NET Core≤ 2.1fstec_bduRU
fedoraproject fedora= 32nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 33nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
microsoft asp.net core2.1 → 2.1.21nvdUScpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
microsoft asp.net core3.1 → 3.1.8nvdUScpe:2.3:a:microsoft:asp.net_core:*:*:*:*:*:*:*:*
redhat enterprise linux= 8.0nvdUScpe:2.3:o:redhat:enterprise_linux:*:*:*:*:*:*:*:*
redhat enterprise linux aus= 8.2nvdUScpe:2.3:o:redhat:enterprise_linux_aus:*:*:*:*:*:*:*:*
redhat enterprise linux aus= 8.4nvdUScpe:2.3:o:redhat:enterprise_linux_aus:*:*:*:*:*:*:*:*
redhat enterprise linux aus= 8.6nvdUScpe:2.3:o:redhat:enterprise_linux_aus:*:*:*:*:*:*:*:*
redhat enterprise linux eus= 8.2nvdUScpe:2.3:o:redhat:enterprise_linux_eus:*:*:*:*:*:*:*:*
redhat enterprise linux eus= 8.4nvdUScpe:2.3:o:redhat:enterprise_linux_eus:*:*:*:*:*:*:*:*
redhat enterprise linux eus= 8.6nvdUScpe:2.3:o:redhat:enterprise_linux_eus:*:*:*:*:*:*:*:*
redhat enterprise linux tus= 8.2nvdUScpe:2.3:o:redhat:enterprise_linux_tus:*:*:*:*:*:*:*:*
redhat enterprise linux tus= 8.4nvdUScpe:2.3:o:redhat:enterprise_linux_tus:*:*:*:*:*:*:*:*
redhat enterprise linux tus= 8.6nvdUScpe:2.3:o:redhat:enterprise_linux_tus:*:*:*:*:*:*:*:*
Bitnami aspnet-core3.1.0 → 3.1.8osvUSpkg:bitnami/aspnet-core
NuGet Microsoft.AspNetCore.App< 2.1.22osvUSpkg:nuget/Microsoft.AspNetCore.App

showing 20 of 90

advisories (4)

Vendor and ecosystem advisories describing this.

RHSA-2020:3697Red Hat Security Advisory: .NET Core 3.1 security and bugfix update for Red Hat Enterprise Linux2020-09-08csaf · redhat_csafUS
An update for rh-dotnet31-dotnet is now available for .NET Core on Red Hat Enterprise Linux. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
RHSA-2020:3699Red Hat Security Advisory: .NET Core 3.1 security and bugfix update2020-09-08csaf · redhat_csafUS
An update for .NET Core 3.1 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
GHSA-hxrm-9w7p-39ccCookie parsing failure2022-05-24ghsa · osvUS
A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names.The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded.The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names., aka 'Microsoft ASP.NET Core Security Feature Bypass Vulnerability'.
BIT-aspnet-core-2020-1045Microsoft ASP.NET Core Security Feature Bypass Vulnerability2024-03-06vendor · osvUS
A security feature bypass vulnerability exists in the way Microsoft ASP.NET Core parses encoded cookie names. The ASP.NET Core cookie parser decodes entire cookie strings which could allow a malicious attacker to set a second cookie with the name being percent encoded. The security update addresses the vulnerability by fixing the way the ASP.NET Core cookie parser handles encoded names.

also known as (6)

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sources

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cnnvd enisa_euvd fstec_bdu osv nvd redhat_csaf NVD CVE.org MITRE

published 2020-09-11modified 2026-06-17

references (27)

External citations — patches, advisories, analysis.

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