GHSA-hhpq-7wg4-36jm
CakePHP Authentication: Open redirect weakness via backslash bypass
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Packagist | cakephp/authentication | >= 3.0.0, < 3.3.6 | 3.3.6 |
| Packagist | cakephp/authentication | >= 4.0.0, < 4.1.1 | 4.1.1 |
| Packagist | cakephp/authentication | < 2.11.1 | 2.11.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
### 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.
References
External links from the advisory. They lead to third-party sites.
- https://github.com/cakephp/authentication/security/advisories/GHSA-hhpq-7wg4-36jm
- https://nvd.nist.gov/vuln/detail/CVE-2026-55590
- https://github.com/cakephp/authentication/pull/795
- https://github.com/cakephp/authentication/pull/796
- https://github.com/cakephp/authentication/pull/799
- https://github.com/cakephp/authentication/commit/1c1e29c7e8129cfbcae74558316ecd3ea50a8273
- https://github.com/cakephp/authentication/commit/df28ea4e712f1e5bd0e42be4a3c5c750ca50764d
- https://github.com/cakephp/authentication/commit/ee24bd48b9c3ef693dc9965de8f0cc8020a7052c
- https://github.com/cakephp/authentication
- https://github.com/cakephp/authentication/releases/tag/2.11.1
- https://github.com/cakephp/authentication/releases/tag/3.3.6
- https://github.com/cakephp/authentication/releases/tag/4.1.1