CVE-2023-6840

mediumpriority · track · 27OT risk · elevatedEPSS 0.006 · 46 %ileDEEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.56% (46th) EPSS

CVSS 6.7 · medium

Is it mine?

12 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR.

cvss

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

6.7

010

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

v3.16.7mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hprimary · NVD / NIST USexploitability 1.2 · impact 5.5

v3.16.7mediumAV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.16.7mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hsecondary · ENISA EU

v3.16.7mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:Hsecondary · cve@gitlab.comexploitability 1.2 · impact 5.5

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

Exploitation: poc · Automatable: no · Technical Impact: partialcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-284USCWE-862US

affected products (12)

Products and version ranges known to be affected.

GitLab GitLab16.4 → 16.6.7enisa_euvdEU
GitLab GitLab16.7 → 16.7.5enisa_euvdEU
GitLab GitLab16.8 → 16.8.2enisa_euvdEU
GitLab Inc. Gitlab16.4 → 16.6.7fstec_bduRU
GitLab Inc. Gitlab16.7 → 16.7.5fstec_bduRU
GitLab Inc. Gitlab16.8 → 16.8.2fstec_bduRU
gitlab gitlab16.4.0 → 16.6.7nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab16.7.0 → 16.7.5nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab16.8.0 → 16.8.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab16.4.0 → 16.6.7osvUSpkg:bitnami/gitlab
Bitnami gitlab16.7.0 → 16.7.5osvUSpkg:bitnami/gitlab
Bitnami gitlab16.8.0 → 16.8.2osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-0317GitLab: Mehrere SchwachstellenDeutsch2024-02-07csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um seine Privilegien zu erhöhen, einen Denial-of-Service-Zustand zu verursachen oder Sicherheitsmaßnahmen zu umgehen.
BIT-gitlab-2023-6840Missing Authorization in GitLab2024-03-06vendor · osvUS
An issue has been discovered in GitLab EE affecting all versions from 16.4 prior to 16.6.7, 16.7 prior to 16.7.5, and 16.8 prior to 16.8.2 which allows a maintainer to change the name of a protected branch that bypasses the security policy added to block MR.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd osv cert_bund NVD CVE.org MITRE

published 2024-02-07modified 2026-06-17

references (7)

External citations — patches, advisories, analysis.

https://cxsecurity.com/cveshow/CVE-2023-6840/cnnvd
https://gitlab.com/Patchcnnvd
https://vigilance.fr/vulnerability/GitLab-CE-EE-five-vulnerabilities-43458 cnnvd
https://gitlab.com/gitlab-org/gitlab/-/issues/435500 enisa_euvd
https://hackerone.com/reports/2280292 enisa_euvd
https://gitlab.com/gitlab-org/gitlab/-/issues/435500Issue TrackingPermissions Requirednvd
https://hackerone.com/reports/2280292Permissions RequiredTechnical Descriptionnvd

scry

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