OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to atta...
High-risk advisory
CVE-2026-54603
Summary
OAuth2::Client#request: Protocol-relative redirect Location overrides authority, leaking bearer Authorization to attacker host
Why it matters
GitHub has published a reviewed security advisory for oauth2. Prioritize it with other application dependency updates.
Operator check
Check whether oauth2 is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.