CVE-2024-2177: Improper Restriction of Rendered UI Layers or Frames in GitLab

Severity: medium (CVSS 6.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2024-07-09 · updated 2026-06-17
Weakness: CWE-1021

Description

A Cross Window Forgery vulnerability exists within GitLab CE/EE affecting all versions from 16.3 prior to 16.11.5, 17.0 prior to 17.0.3, and 17.1 prior to 17.1.1. This condition allows for an attacker to abuse the OAuth authentication flow via a crafted payload.

Affected products

GitLab: from 16.3.0 before 16.11.5; from 17.0.0 before 17.0.3; 17.1.0 — fixed in 16.11.5, 17.0.3

How to fix

Upgrade to a fixed version: GitLab 16.11.5, 17.0.3. Check the vendor advisory for mitigations.

References

https://gitlab.com/gitlab-org/gitlab/-/issues/444467
https://hackerone.com/reports/2383443
https://gitlab.com/gitlab-org/gitlab/-/issues/444467
https://hackerone.com/reports/2383443

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