CVE-2024-11599

mediumpriority · track · 21EPSS 0.005 · 40 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.47% (40th) EPSS

CVSS 5.3 · medium

Is it mine?

18 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

Mattermost versions 10.0.x <= 10.0.1, 10.1.x <= 10.1.1, 9.11.x <= 9.11.3, 9.5.x <= 9.5.11 fail to properly validate email addresses which allows an unauthenticated user to bypass email domain restrictions via carefully crafted input on email registration.

cvss

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

8.2

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 4.9–8.2

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · ENISA EU

v3.18.2highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:Nsecondary · responsibledisclosure@mattermost.comexploitability 3.9 · impact 4.2

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

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-754US

affected products (18)

Products and version ranges known to be affected.

Mattermost Mattermost <10.0.2all versionscert_bundDE
Mattermost Mattermost <10.1.2all versionscert_bundDE
Mattermost Mattermost <10.2.0all versionscert_bundDE
Mattermost Mattermost <9.11.4all versionscert_bundDE
Mattermost Mattermost <9.5.12all versionscert_bundDE
Mattermost Mattermost< 10.0.2cert_bundDE
Mattermost Mattermost< 10.1.2cert_bundDE
Mattermost Mattermost< 10.2.0cert_bundDE
Mattermost Mattermost< 9.11.4cert_bundDE
Mattermost Mattermost< 9.5.12cert_bundDE
Mattermost Mattermost≤ 9.5.0 ≤9.5.11enisa_euvdEU
Mattermost Mattermost≤ 10.0.0 ≤10.0.1enisa_euvdEU
Mattermost Mattermost≤ 9.11.0 ≤9.11.3enisa_euvdEU
Mattermost Mattermost≤ 10.1.0 ≤10.1.1enisa_euvdEU
mattermost mattermost server10.0.0 → 10.0.2nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server10.1.0 → 10.1.2nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server9.11.0 → 9.11.4nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
mattermost mattermost server9.5.0 → 9.5.12nvdUScpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-3329Mattermost: Schwachstelle ermöglicht nicht spezifizierten AngriffDeutsch2024-11-04csaf · cert_bundDE
Ein Angreifer kann eine Schwachstelle in Mattermost ausnutzen, um einen nicht näher spezifizierten Angriff durchzuführen.

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 NVD CVE.org MITRE

published 2024-11-28modified 2026-06-17

references (3)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan