CVE-2025-9958

HIGH 7.7 ALL-YEARS

Published 2025-09-26 · Last modified 2025-11-06 · GitLab · NVD: Modified

An issue has been discovered in GitLab CE/EE affecting all versions from 14.10 before 18.2.7, 18.3 before 18.3.3, and 18.4 before 18.4.1, that could have allowed Guest users to access sensitive information stored in virtual registry configurations.

ELEVATED IMPACT

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

Exploitation likelihood

0.5%chance of exploitation in 30 days · 43rd percentile

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

Impact if exploited

7.7CVSS 3.1 · HIGH · CNA

ConfidentialityHigh
IntegrityNone
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.

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

Affected

Vendors Gitlab

Products Gitlab

Weakness (CWE)

CWE-201: : Insertion of Sensitive Information Into Sent Data

CVSS vector

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

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 14.10.0 and < 18.2.7
Gitlab	Gitlab	≥ 14.10.0 and < 18.2.7
Gitlab	Gitlab	≥ 18.3.0 and < 18.3.3
Gitlab	Gitlab	≥ 18.3.0 and < 18.3.3
Gitlab	Gitlab	18.4.0
Gitlab	Gitlab	18.4.0

All CVSS metrics

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

References

Exploit-tagged references (not proof of a PoC)

https://hackerone.com/reports/3323573 technical-descriptionexploitpermissions-requiredPermissions RequiredCVE record · GitLab · Updated 2025-11-06T17:30:27.285Z
NVD · CVE-2025-9958 · Updated 2026-10-19T16:10:00.260

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-31322 ADVISORYEUVD · EUVD-2025-31322

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/issues/567777 issue-trackingpermissions-requiredBroken LinkCVE record · GitLab · Updated 2025-11-06T17:30:27.285Z
NVD · CVE-2025-9958 · Updated 2026-10-19T16:10:00.260

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