CVE-2025-3601

MEDIUM 6.5 ALL-YEARS

Published 2025-08-27 · Last modified 2025-08-27 · GitLab · NVD: Analyzed

An issue has been discovered in GitLab CE/EE affecting all versions from 8.15 before 18.1.5, 18.2 before 18.2.5, and 18.3 before 18.3.1 that could have could have allowed an authenticated user to cause a Denial of Service (DoS) condition by submitting URLs that generate excessively large responses.

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

6.5CVSS 3.1 · MEDIUM · CNA

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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-770: : Allocation of Resources Without Limits or Throttling

CVSS vector

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

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Gitlab	Gitlab	≥ 8.15.0 and < 18.1.5
Gitlab	Gitlab	≥ 8.15.0 and < 18.1.5
Gitlab	Gitlab	≥ 18.2.0 and < 18.2.5
Gitlab	Gitlab	≥ 18.2.0 and < 18.2.5
Gitlab	Gitlab	18.3.0
Gitlab	Gitlab	18.3.0

All CVSS metrics

MEDIUM 6.5 v3.1 · CNA Primary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
MEDIUM 6.5 v3.1 · NVD Secondary
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References

Exploit-tagged references (not proof of a PoC)

https://hackerone.com/reports/3050155 technical-descriptionexploitpermissions-requiredPermissions RequiredCVE record · GitLab · Updated 2025-08-27T19:33:50.920Z
NVD · CVE-2025-3601 · Updated 2026-06-17T09:20:16.753

Advisories

https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-25948 ADVISORYEUVD · EUVD-2025-25948

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/issues/536034 issue-trackingpermissions-requiredBroken LinkCVE record · GitLab · Updated 2025-08-27T19:33:50.920Z
NVD · CVE-2025-3601 · Updated 2026-06-17T09:20:16.753

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