Information Exposure Affecting gitlab-rails-ce-18.6 package, versions <18.6.8-r5
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-CHAINGUARDLATEST-GITLABRAILSCE186-18427319
- published30 Jul 2026
- disclosed28 Jul 2026
Introduced: 28 Jul 2026
CVE-2026-54603 (opens in a new tab)How to fix?
Upgrade Chainguard gitlab-rails-ce-18.6 to version 18.6.8-r5 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gitlab-rails-ce-18.6 package and not the gitlab-rails-ce-18.6 package as distributed by Chainguard.
See How to fix? for Chainguard relevant fixed versions and status.
OAuth2 is a Ruby wrapper for the OAuth 2.0 and 2.1 authorization frameworks, including OpenID Connect (OIDC). From 0.4.0 to 2.0.21, a protocol-relative redirect Location returned to OAuth2::Client#request overrides the request authority, so the bearer Authorization header is sent to an attacker-controlled host, leaking the credential. This issue is fixed in version 2.0.22.