CVE-2023-1555

mediumpriority · track · 17EPSS 0.005 · 40 %ileDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.46% (40th) EPSS

CVSS 4.3 · medium

Is it mine?

9 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-27

An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A namespace-level banned user can access the API.

cvss

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

4.3

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–4.3

v3.14.3mediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 2.8 · impact 1.4

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.12.7lowCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:Nsecondary · cve@gitlab.comexploitability 1.2 · impact 1.4

v3.14mediumCVSS:3.1/AV:N/AC:L/PR:L/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.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-262US

affected products (9)

Products and version ranges known to be affected.

GitLab GitLab15.2 → 16.1.5enisa_euvdEU
GitLab GitLab16.2 → 16.2.5enisa_euvdEU
GitLab GitLab16.3 → 16.3.1enisa_euvdEU
gitlab gitlab15.2.0 → 16.1.5nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab16.2 → 16.2.5nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
gitlab gitlab= 16.3.0nvdUScpe:2.3:a:gitlab:gitlab:*:*:*:*:*:*:*:*
Bitnami gitlab15.2.0 → 16.1.5osvUSpkg:bitnami/gitlab
Bitnami gitlab16.2.0 → 16.2.5osvUSpkg:bitnami/gitlab
Bitnami gitlab16.3.0 → 16.3.1osvUSpkg:bitnami/gitlab

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2244GitLab: Mehrere SchwachstellenDeutsch2023-08-31csaf · cert_bundDE
Ein entfernter, authentifizierter Angreifer kann mehrere Schwachstellen in GitLab ausnutzen, um8 Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand zu verursachen, vertrauliche Informationen offenzulegen und seine Privilegien zu erweitern.
BIT-gitlab-2023-1555Missing Authorization in GitLab2024-03-06vendor · osvUS
An issue has been discovered in GitLab affecting all versions starting from 15.2 before 16.1.5, all versions starting from 16.2 before 16.2.5, all versions starting from 16.3 before 16.3.1. A namespace-level banned user can access the API.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv cert_bund NVD CVE.org MITRE

published 2023-09-01modified 2026-06-17

references (8)

External citations — patches, advisories, analysis.

scry

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