CVE-2026-2845

MEDIUM 6.5 ALL-YEARS

Published 2026-02-25 · Last modified 2026-02-26 · GitLab · NVD: Analyzed

An issue has been discovered in GitLab CE/EE affecting all versions from 11.2 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an authenticated user to cause denial of service by exploiting a Bitbucket Server import endpoint via repeatedly sending 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 · 22nd 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.

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	≥ 11.2.0 and < 18.7.5
Gitlab	Gitlab	≥ 11.2.0 and < 18.7.5
Gitlab	Gitlab	≥ 18.8.0 and < 18.8.5
Gitlab	Gitlab	≥ 18.8.0 and < 18.8.5
Gitlab	Gitlab	18.9.0
Gitlab	Gitlab	18.9.0

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

Advisories

https://about.gitlab.com/releases/2026/02/25/patch-release-gitlab-18-9-1-released/ Release NotesVendor AdvisoryCVE record · GitLab · Updated 2026-02-25T20:04:35.210Z
NVD · CVE-2026-2845 · Updated 2026-06-17T10:31:52.210
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-8742 ADVISORYEUVD · EUVD-2026-8742

Technical & other

https://gitlab.com/gitlab-org/gitlab/-/work_items/570554 Broken LinkCVE record · GitLab · Updated 2026-02-25T20:04:35.210Z
NVD · CVE-2026-2845 · Updated 2026-06-17T10:31:52.210

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