CVE-2026-1456

Allocation of Resources Without Limits or Throttling in GitLab

CVSS 6.5 MEDIUMEPSS 0.4%CWE-770

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.4%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

11 Feb 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.7 before 18.7.4, and 18.8 before 18.8.4 that could have allowed an unauthenticated user to cause denial of service through CPU exhaustion by submitting specially crafted markdown files that trigger exponential processing in markdown preview.

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

Affected products

GitLab · GitLab

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References

https://about.gitlab.com/releases/2026/02/10/patch-release-gitlab-18-8-4-released/https://gitlab.com/gitlab-org/gitlab/-/issues/587688 https://hackerone.com/reports/3517928