CVE-2023-5226

highpriority · track · 30EPSS 0.005 · 46 %ileDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.55% (46th) EPSS

CVSS 7.5 · high

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 affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.

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 · 4.8–7.5

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

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:Nsecondary · ENISA EU

v3.14.8mediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:Nsecondary · cve@gitlab.comexploitability 1.2 · impact 3.6

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-94US

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 GitLab0 → 16.4.3enisa_euvdEU
GitLab GitLab16.5 → 16.5.3enisa_euvdEU
GitLab GitLab16.6 → 16.6.1enisa_euvdEU
gitlab gitlab< 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 gitlab< 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-2023-5226Improper Control of Generation of Code ('Code Injection') in GitLab2024-03-06vendor · osvUS
An issue has been discovered in GitLab affecting all versions before 16.4.3, all versions starting from 16.5 before 16.5.3, all versions starting from 16.6 before 16.6.1. Under certain circumstances, a malicious actor bypass prohibited branch checks using a specially crafted branch name to manipulate repository content in the UI.

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/426400 cnnvd
https://hackerone.com/reports/2173053 cnnvd
https://vigilance.fr/vulnerability/GitLab-CE-EE-multiple-vulnerabilities-42997 cnnvd
https://gitlab.com/gitlab-org/gitlab/-/issues/426400 enisa_euvd
https://hackerone.com/reports/2173053 enisa_euvd
https://gitlab.com/gitlab-org/gitlab/-/issues/426400Broken LinkVendor Advisorynvd
https://hackerone.com/reports/2173053Permissions RequiredThird Party Advisorynvd

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