CVE-2025-27773
published 2025-03-11CVE-2025-27773: The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion…
high8.6CVSS 3.1
AVNACLPRNUINSCCNIHAN
The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.17.0 and 5.0.0-alpha.20, there is a signature confusion attack in the HTTPRedirect binding. An attacker with any signed SAMLResponse via the HTTP-Redirect binding can cause the application to accept an unsigned message. Versions 4.17.0 and 5.0.0-alpha.20 contain a fix for the issue.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | simplesamlphp | < simplesamlphp 1.19.7-1+deb12u2 (bookworm) | simplesamlphp 1.19.7-1+deb12u2 (bookworm) |
| simplesamlphp | saml2 | < 4.17.0 | 4.17.0 |
| simplesamlphp | saml2 | — | — |
| simplesamlphp | saml2 | >= 0 < 4.17.0 | 4.17.0 |
| simplesamlphp | saml2 | >= 5.0.0-alpha.1 < 5.0.0-alpha.20 | 5.0.0-alpha.20 |
| simplesamlphp | saml2-legacy | >= 0 < 4.17.0 | 4.17.0 |
| simplesamlphp | simplesamlphp | >= 0 < 1.19.0-1+deb11u2 | 1.19.0-1+deb11u2 |
| simplesamlphp | simplesamlphp | >= 0 < 1.19.7-1+deb12u2 | 1.19.7-1+deb12u2 |
CVSS provenance
nvdv3.18.6HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N
osv8.6HIGH