CVE-2026-15975

HIGH 7.5

Allocation of Resources Without Limits or Throttling in GitLab

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 11.8 before 19.0.5, 19.1 before 19.1.3, and 19.2 before 19.2.1 that under certain conditions could have allowed an unauthenticated user to cause a denial of service due to insufficient resource throttling when processing merge request discussions.

CWE	CWE-770
Vendor	gitlab
Product	gitlab
Ecosystems	DevTools
Industries	Technology
Published	Jul 29, 2026
Last Updated	Jul 29, 2026

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CVSS v3 Breakdown

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

GitLab / GitLab

11.8 < 19.0.5 19.1 < 19.1.3 19.2 < 19.2.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

gitlab.com: https://gitlab.com/gitlab-org/gitlab/-/work_items/601420 docs.gitlab.com: https://docs.gitlab.com/releases/patches/patch-release-gitlab-19-2-1-released/

Credits

This vulnerability has been discovered internally by GitLab team member Hordur Freyr Yngvason