CVE-2023-4912

mediumpriority · track · 26EPSS 0.006 · 47 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.57% (47th) EPSS

CVSS 6.5 · medium

Is it mine?

16 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-27

An issue has been discovered in GitLab EE affecting all versions starting from 10.5 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted mermaid diagram input.

cvss

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

6.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.6–6.5

v3.16.5mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 2.8 · impact 3.6

v3.12.6lowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:Lsecondary · ENISA EU

v3.12.6lowCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:Lsecondary · cve@gitlab.comexploitability 1.2 · impact 1.4

v3.16mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-770US

affected products (16)

Products and version ranges known to be affected.

Open Source GitLab <16.4.3all versionscert_bundDE
Open Source GitLab <16.5.3all versionscert_bundDE
Open Source GitLab <16.6.1all versionscert_bundDE
RESF Rocky Linuxall versionscert_bundDEcpe:/o:resf:rocky_linux:-
Open Source GitLab< 16.4.3cert_bundDE
Open Source GitLab< 16.5.3cert_bundDE
Open Source GitLab< 16.6.1cert_bundDE
GitLab GitLab10.5 → 16.4.3enisa_euvdEU
GitLab GitLab16.5 → 16.5.3enisa_euvdEU
GitLab GitLab16.6 → 16.6.1enisa_euvdEU
gitlab gitlab10.5.0 → 16.4.3nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab16.5.0 → 16.5.3nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab= 16.6.0nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab10.5.0 → 16.4.3osvUSpkg:bitnami/gitlab
Bitnami gitlab16.5.0 → 16.5.3osvUSpkg:bitnami/gitlab
Bitnami gitlab16.6.0 → 16.6.1osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-3041GitLab: Mehrere SchwachstellenDeutsch2023-11-30csaf · cert_bundDE
Ein entfernter Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen, Dateien zu manipulieren, seine Berechtigungen zu erweitern oder XSS-Angriffe durchzuführen.
BIT-gitlab-2023-4912Allocation of Resources Without Limits or Throttling in GitLab2024-03-06vendor · osvUS
An issue has been discovered in GitLab EE affecting all versions starting from 10.5 before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. It was possible for an attacker to cause a client-side denial of service using malicious crafted mermaid diagram input.

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 osv NVD CVE.org MITRE

published 2023-12-01modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

https://gitlab.com/gitlab-org/gitlab/-/issues/424882 cnnvd
https://hackerone.com/reports/2137421 cnnvd
https://vigilance.fr/vulnerability/GitLab-CE-EE-multiple-vulnerabilities-42997 cnnvd
https://gitlab.com/gitlab-org/gitlab/-/issues/424882 enisa_euvd
https://hackerone.com/reports/2137421 enisa_euvd
https://gitlab.com/gitlab-org/gitlab/-/issues/424882Broken LinkVendor Advisorynvd
https://hackerone.com/reports/2137421Permissions RequiredThird Party Advisorynvd

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