CVE-2025-12506

LOW 3.5 ALL-YEARS

Published 2026-07-08 · Last modified 2026-07-09 · GitLab · NVD: Analyzed

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 16.5 before 18.11.7, 19.0 before 19.0.4, and 19.1 before 19.1.2 that under certain conditions could have allowed an authenticated user to create a repository where the content displayed in the web interface differed from the content available for download, due to improper handling of Git reference name resolution.

LIMITED SIGNALS

No known exploitation, public exploit, or elevated probability at this time. Track for changes.

Exploitation likelihood

0.3%chance of exploitation in 30 days · 25th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

3.5CVSS 3.1 · LOW · CNA

ConfidentialityNone
IntegrityLow
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
⚠User interaction: A user must take an action (click / open a file)
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

Search for new PoCs

Search GitHub now — results may be empty or unverified.

Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Data snapshot: 2026-10-26T04:59:11.116Z

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-706: : Use of Incorrectly-Resolved Name or Reference

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 16.5.0 and < 18.11.7
Gitlab	Gitlab	≥ 16.5.0 and < 18.11.7
Gitlab	Gitlab	≥ 19.0.0 and < 19.0.4
Gitlab	Gitlab	≥ 19.0.0 and < 19.0.4
Gitlab	Gitlab	≥ 19.1.0 and < 19.1.2
Gitlab	Gitlab	≥ 19.1.0 and < 19.1.2

All CVSS metrics

LOW 3.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
LOW 3.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N
MEDIUM 4.3 v3.1 · NVD Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

Exploit-tagged references (not proof of a PoC)

https://hackerone.com/reports/3351460 technical-descriptionexploitpermissions-requiredPermissions RequiredCVE record · GitLab · Updated 2026-07-08T20:47:28.863Z
NVD · CVE-2025-12506 · Updated 2026-09-29T19:10:00.160

Advisories

https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-1-2-released/ Vendor AdvisoryCVE record · GitLab · Updated 2026-07-08T20:47:28.863Z
NVD · CVE-2025-12506 · Updated 2026-09-29T19:10:00.160
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-210442 ADVISORYEUVD · EUVD-2025-210442

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/work_items/578988 Broken LinkCVE record · GitLab · Updated 2026-07-08T20:47:28.863Z
NVD · CVE-2025-12506 · Updated 2026-09-29T19:10:00.160

Sources: NVD · CVE.org · All sources and attribution · EPSS