CVE-2023-5831

mediumpriority · track · 21EPSS 0.005 · 39 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (39th) EPSS

CVSS 5.3 · medium

Is it mine?

15 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · scored 2026-10-22

An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.0 before 16.3.6, all versions starting from 16.4 before 16.4.2, and all versions starting from 16.5.0 before 16.5.1 which have the `super_sidebar_logged_out` feature flag enabled. Affected versions with this default-disabled feature flag enabled may unintentionally disclose GitLab version metadata to unauthorized actors.

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 3.7–5.3

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

v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · ENISA EU

v3.13.7lowCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:Nsecondary · cve@gitlab.comexploitability 2.2 · impact 1.4

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/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-201US

affected products (15)

Products and version ranges known to be affected.

Open Source GitLab <16.3.6all versionscert_bundDE
Open Source GitLab <16.4.2all versionscert_bundDE
Open Source GitLab <16.5.1all versionscert_bundDE
Open Source GitLab< 16.3.6cert_bundDE
Open Source GitLab< 16.4.2cert_bundDE
Open Source GitLab< 16.5.1cert_bundDE
GitLab GitLab16.0 → 16.3.6enisa_euvdEU
GitLab GitLab16.4 → 16.4.2enisa_euvdEU
GitLab GitLab16.5 → 16.5.1enisa_euvdEU
gitlab gitlab16.0.0 → 16.3.6nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab16.4.0 → 16.4.2nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab= 16.5.0nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab16.0.0 → 16.3.6osvUSpkg:bitnami/gitlab
Bitnami gitlab16.4.0 → 16.4.2osvUSpkg:bitnami/gitlab
Bitnami gitlab16.5.0 → 16.5.1osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2788GitLab: Mehrere SchwachstellenDeutsch2023-10-31csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um einen Denial of Service Angriff durchzuführen und Informationen offenzulegen.
BIT-gitlab-2023-5831Insertion of Sensitive Information Into Sent Data in GitLab2024-03-06vendor · osvUS
An issue has been discovered in GitLab CE/EE affecting all versions starting from 16.0 before 16.3.6, all versions starting from 16.4 before 16.4.2, and all versions starting from 16.5.0 before 16.5.1 which have the `super_sidebar_logged_out` feature flag enabled. Affected versions with this default-disabled feature flag enabled may unintentionally disclose GitLab version metadata to unauthorized actors.

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 2023-11-06modified 2026-06-17

references (6)

External citations — patches, advisories, analysis.

scry

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