CVE-2025-11340

HIGH 7.7 ALL-YEARS

Published 2025-10-09 · Last modified 2025-10-09 · GitLab · NVD: Analyzed

GitLab has remediated an issue in GitLab EE affecting all versions from 18.3 to 18.3.4, 18.4 to 18.4.2 that, under certain conditions, could have allowed authenticated users with read-only API tokens to perform unauthorized write operations on vulnerability records by exploiting incorrectly scoped GraphQL mutations.

ELEVATED IMPACT

Severe if exploited (CVSS 7.7), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.4%chance of exploitation in 30 days · 31st percentile

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

Impact if exploited

7.7CVSS 3.1 · HIGH · CNA

ConfidentialityNone
IntegrityHigh
AvailabilityNone

What an attacker needs

✓Access: Reachable over the network — no local access needed
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓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.

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-863: : Incorrect Authorization

CVSS vector

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

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 18.3.0 and < 18.3.4
Gitlab	Gitlab	≥ 18.3.0 and < 18.3.4
Gitlab	Gitlab	≥ 18.4.0 and < 18.4.2
Gitlab	Gitlab	≥ 18.4.0 and < 18.4.2

All CVSS metrics

HIGH 7.7 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N
HIGH 7.7 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:N

References

Advisories

https://about.gitlab.com/releases/2025/10/08/patch-release-gitlab-18-4-2-released/ Release NotesVendor AdvisoryCVE record · GitLab · Updated 2025-10-09T12:04:20.127Z
NVD · CVE-2025-11340 · Updated 2026-10-19T16:10:00.260
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-33333 ADVISORYEUVD · EUVD-2025-33333

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/issues/567847 issue-trackingpermissions-requiredBroken LinkCVE record · GitLab · Updated 2025-10-09T12:04:20.127Z
NVD · CVE-2025-11340 · Updated 2026-10-19T16:10:00.260

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