Medium, CVSS 5.1PackagistPublished
CakePHP Authentication: Open redirect weakness via backslash bypass
CVE-2026-55590 · GHSA-hhpq-7wg4-36jm
- Affected
- Packagist cakephp/authentication >= 4.0.0, < 4.1.1; >= 3.0.0, < 3.3.6; < 2.11.1
- Fixed in
- 3.3.62.11.14.1.1· Vendor fix available
- Issue
- Impact The getLoginRedirect() method contains a weakness to backslash bypasses allowing redirect targets with attacker controlled hostnames. Patches 2.11.1, 3.3.6 and 4.1.1 contain a fix for this issue. Workarounds If you are unable to upgrade, you should consider adding application validation to the redirect query string parameter to mitigate this vulnerability.
Recommended action: Upgrade to 4.1.1, 3.3.6 or 2.11.1 by release line, then redeploy and verify.A vendor fix does not resolve your finding until you verify it in your own systems.