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CVE-2026-55590CakePHP: Open redirect weakness via backslash bypass
CakePHP Authentication is an authentication plugin for CakePHP that can also be used in PSR-7 based applications. Prior to 2.11.1, 3.3.6, and 4.1.1, the getLoginRedirect() method contains a weakness to backslash bypasses that allows redirect targets with attacker-controlled hostnames through the redirect query string parameter. This issue is fixed in versions 2.11.1, 3.3.6, and 4.1.1.
5.1 MEDIUMEPSS 0.49%Not in KEVNVD: Analyzed
Overview
Severity
| Score | Severity | Version | Vector String |
|---|---|---|---|
| 5.1 | MEDIUM | 4.0GitHub_M (CNA) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:L/SI:L/SA:N |
| 6.1 | MEDIUM | 3.1NVD | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Details
- CVE ID
- CVE-2026-55590
- Status
- Analyzed
- Assigner (CNA)
- GitHub_M
- Published
- Jul 9, 2026
- Last modified
- 2026-10-25 17:10 UTC
- Weaknesses
- CWE-601 · URL Redirection to Untrusted Site ('Open Redirect')
Affected Products
As published by the CNA in the CVE record.
cakephpauthentication3 version ranges
- < 2.11.1
- >= 3.0.0, < 3.3.6
- >= 4.0.0, < 4.1.1
References
- github.com https://github.com/cakephp/authentication/commit/1c1e29c7e8129cfbcae74558316ecd3ea50a8273
- github.com https://github.com/cakephp/authentication/commit/df28ea4e712f1e5bd0e42be4a3c5c750ca50764d
- github.com https://github.com/cakephp/authentication/commit/ee24bd48b9c3ef693dc9965de8f0cc8020a7052c
- github.com https://github.com/cakephp/authentication/pull/795
- github.com https://github.com/cakephp/authentication/pull/796
- github.com https://github.com/cakephp/authentication/pull/799
- github.com https://github.com/cakephp/authentication/releases/tag/2.11.1
- github.com https://github.com/cakephp/authentication/releases/tag/3.3.6
- github.com https://github.com/cakephp/authentication/releases/tag/4.1.1
- github.com https://github.com/cakephp/authentication/security/advisories/GHSA-hhpq-7wg4-36jm