CVE-2019-20479

mediumpriority · track · 25EPSS 0.019 · 80 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.89% (80th) EPSS

CVSS 5.8 · medium

Is it mine?

22 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-28

A flaw was found in mod_auth_openidc before version 2.4.1. An open redirect issue exists in URLs with a slash and backslash at the beginning.

remediations

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

A vendor fix is available.

Fixedcjose-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-0:0.6.1-2.module+el8+2454+f890a43a.src (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedcjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.src (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debuginfo-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debuginfo-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debuginfo-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debuginfo-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debugsource-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.aarch64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debugsource-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.ppc64le (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debugsource-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.s390x (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-debugsource-0:2.3.7-4.module+el8.2.0+6919+ac02cfd2.3.x86_64 (mod_auth_openidc:2.3) 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-2020:3032
Fixedmod_auth_openidc-0:1.8.8-7.el7.ppc64 as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.ppc64le as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.s390x as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.src as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.src as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.x86_64 as a component of 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-2020:3970
Fixedmod_auth_openidc-0:1.8.8-7.el7.x86_64 as a component of 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-2020:3970
Fixedmod_auth_openidc-debuginfo-0:1.8.8-7.el7.ppc64 as a component of 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-2020:3970
Fixedmod_auth_openidc-debuginfo-0:1.8.8-7.el7.ppc64le as a component of 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-2020:3970
Fixedmod_auth_openidc-debuginfo-0:1.8.8-7.el7.s390x as a component of 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-2020:3970
Fixedmod_auth_openidc-debuginfo-0:1.8.8-7.el7.x86_64 as a component of 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-2020:3970
Fixedmod_auth_openidc-debuginfo-0:1.8.8-7.el7.x86_64 as a component of 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-2020:3970

cvss

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

6.1

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USexploitability 8.6 · impact 4.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 2.7

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.15.8mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:Lsecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-601USprimaryCWE-601US

affected products (22)

Products and version ranges known to be affected.

Red Hat Enterprise Linux 7all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7
Red Hat Enterprise Linux 8all versionscert_bundDEcpe:/o:redhat:enterprise_linux:8
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
n/a n/a≤ n/aenisa_euvdEU
debian debian linux= 8.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 9.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 31nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 32nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
openidc mod auth openidc< 2.4.1nvdUScpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:*
opensuse leap= 15.1nvdUScpe:2.3:o:opensuse:leap:*:*:*:*:*:*:*:*
mod_auth_openidc-0:1.8.8-7.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.src as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.src as a component of Red Hat Enterprise Linux Workstation (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.x86_64 as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-0:1.8.8-7.el7.x86_64 as a component of Red Hat Enterprise Linux Workstation (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-debuginfo-0:1.8.8-7.el7.ppc64 as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-debuginfo-0:1.8.8-7.el7.ppc64le as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS
mod_auth_openidc-debuginfo-0:1.8.8-7.el7.s390x as a component of Red Hat Enterprise Linux Server (v. 7)all versionsfixedredhat_csafUS

showing 20 of 22

advisories (3)

Vendor and ecosystem advisories describing this.

RHSA-2020:3032Red Hat Security Advisory: mod_auth_openidc:2.3 security and bug fix update2020-07-21csaf · redhat_csafUS
An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. 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-2020:3970Red Hat Security Advisory: mod_auth_openidc security update2020-09-29csaf · redhat_csafUS
An update for mod_auth_openidc is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Low. 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.
WID-SEC-W-2025-2930Red Hat Enterprise Linux: Schwachstelle ermöglicht Umgehen von SicherheitsvorkehrungenDeutsch2020-07-21csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Red Hat Enterprise Linux ausnutzen, um Sicherheitsvorkehrungen zu umgehen.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund nvd redhat_csaf NVD CVE.org MITRE

published 2020-02-20modified 2026-06-17

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references (34)

External citations — patches, advisories, analysis.

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