Skip to content
OpenAdvisories

Product · simplesamlphp

saml2

4 known vulnerabilities.

saml2 at a glance

Last 12 months
2
Critical · all time
0
Exploited · all time
0
Public exploit · all time
1
New vulnerabilities per month · last 12 months
0 1 2 December 2025: 0 vulnerabilities Dec 2025 January 2026: 0 vulnerabilities February 2026: 0 vulnerabilities March 2026: 0 vulnerabilities Mar April 2026: 0 vulnerabilities May 2026: 0 vulnerabilities June 2026: 0 vulnerabilities Jun July 2026: 0 vulnerabilities August 2026: 2 vulnerabilities September 2026: 0 vulnerabilities Sep October 2026: 0 vulnerabilities November 2026: 0 vulnerabilities
Show as table
MonthVulnerabilitiesCritical
Nov 202600
Oct 202600
Sep 202600
Aug 202620
Jul 202600
Jun 202600
May 202600
Apr 202600
Mar 202600
Feb 202600
Jan 202600
Dec 202500
Nov 202500
Oct 202500
Sep 202500
Aug 202500
Jul 202500
Jun 202500
May 202500
Apr 202500
Mar 202510
Feb 202500
Jan 202500
Dec 202410
All Critical High Medium Low Exploited only Public exploit

4 results · Feed

  • High 7.5
    CVE-2026-49289

    SimpleSAMLphp SAML2: Possible DoS via XPath Transform

    The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. In 4.19.2 and 4.20.2, the library permits attacker-controlled XPath transforms while processing XML signatures in specially crafted SAML messages. XPath evaluation can consume u…

    simplesamlphp saml2 simplesamlphp simplesamlphp Debian Ubuntu Packagist
  • High 8.7
    CVE-2026-49283

    SimpleSAMLphp HTTP-Artifact TLS validator confusion allows cross-IdP authentication bypass

    The SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. Prior to versions 4.19.3, 4.20.2, 5.0.6, and 6.2.1, the HTTPArtifact::receive() flow can treat an unsigned embedded SAML Response as cryptographically valid for the wrong identi…

    simplesamlphp saml2 simplesamlphp simplesamlphp Debian Ubuntu Packagist
  • High 8.6
    CVE-2025-27773

    SimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect binding

    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 bi…

    simplesamlphp saml2 simplesamlphp simplesamlphp Debian Ubuntu Packagist
  • High 8.3
    CVE-2024-52806 Public exploit

    SimpleSAMLphp SAML2 has an XXE in parsing SAML messages

    SimpleSAMLphp SAML2 library is a PHP library for SAML2 related functionality. When loading an (untrusted) XML document, for example the SAMLResponse, it's possible to induce an XXE. This vulnerability is fixed in 4.6.14 and 5.0.0-alpha.18.

    simplesamlphp saml2 simplesamlphp simplesamlphp Debian Ubuntu Packagist