TI-2026-13377 Aliases CVE-2026-15975 GHSA-x55f-grmq-xwwm

Allocation of Resources Without Limits or Throttling in GitLab

LOW 39CWE-770Published 2026-07-29 · Updated 2026-07-29

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-770.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00509 43rd percentileScored 2026-11-07

Fix Fixed GitLab (GitLab): 19.0.5, 19.1.3, 19.2.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
GitLab	GitLab	11.8 to before 19.0.5; 19.1 to before 19.1.3; 19.2 to before 19.2.1	19.0.5, 19.1.3, 19.2.1	Patch available	CNA

GitLab VendorGitLab Affected 11.8 to before 19.0.5; 19.1 to before 19.1.3; 19.2 to before 19.2.1 Fixed in 19.0.5, 19.1.3, 19.2.1 Patch available CNA

CPE configurations NVD · 6

CPE	Versions	Role	Vendor
cpe:2.3:a:gitlab:gitlab:::::community:::*	11.8.0 to before 19.0.5	Vulnerable	GitLab
cpe:2.3:a:gitlab:gitlab:::::enterprise:::*	11.8.0 to before 19.0.5	Vulnerable	GitLab
cpe:2.3:a:gitlab:gitlab:::::community:::*	19.1.0 to before 19.1.3	Vulnerable	GitLab
cpe:2.3:a:gitlab:gitlab:::::enterprise:::*	19.1.0 to before 19.1.3	Vulnerable	GitLab
cpe:2.3:a:gitlab:gitlab:19.2.0::::community:::	19.2.0	Vulnerable	GitLab
cpe:2.3:a:gitlab:gitlab:19.2.0::::enterprise:::	19.2.0	Vulnerable	GitLab

cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 11.8.0 to before 19.0.5 Vulnerable ·GitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 11.8.0 to before 19.0.5 Vulnerable ·GitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:community:*:*:* Versions 19.1.0 to before 19.1.3 Vulnerable ·GitLab
cpe:2.3:a:gitlab:gitlab:*:*:*:*:enterprise:*:*:* Versions 19.1.0 to before 19.1.3 Vulnerable ·GitLab
cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:community:*:*:* Versions 19.2.0 Vulnerable ·GitLab
cpe:2.3:a:gitlab:gitlab:19.2.0:*:*:*:enterprise:*:*:* Versions 19.2.0 Vulnerable ·GitLab

Remediation

Fix · CNA GitLab (GitLab) Fixed in 19.0.5, 19.1.3, 19.2.1

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-07-29
GitLab 19.0.5, 19.1.3, 19.2.1
11 records Highest priority Priority MEDIUM 6 MEDIUM, 5 LOW
Other records, highest priority first
- TI-2026-05558 Incorrect Authorization in GitLabPriority MEDIUM 63
- TI-2026-12127 Missing Authorization in GitLabPriority MEDIUM 56
- TI-2026-02672 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in GitLabPriority MEDIUM 55
Show all 11 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-15975
2026-10-03 Alias added: GHSA-x55f-grmq-xwwm

References

Advisory 1

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

Other 1

https://gitlab.com/gitlab-org/gitlab/-/work_items/601420

TI-2026-71508 Integer overflow in GitLab allows code execution on the server KEVCVSS 3.1CRITICAL 10.0
TI-2026-58817 Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') in GitLab KEVCVSS 3.1CRITICAL 10.0
TI-2023-06425 Weak Password Recovery Mechanism for Forgotten Password in GitLab KEVCVSS 3.1CRITICAL 10.0
TI-2021-05191 Code injection in GitLab KEVCVSS 3.1CRITICAL 10.0
TI-2021-05161 Server-side request forgery in GitLab KEVCVSS 3.1CRITICAL 9.8
TI-2022-02763 Injection in GitLab CVSS 3.1CRITICAL 9.9

See all 1506 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences