CVE-2025-27773
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2025-27773
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-27773.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2025-27773
- Aliases
- Downstream
- Published
- 2025-03-11T19:04:52Z
- Modified
- 2025-10-20T20:30:57.410067Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N CVSS Calculator
- Summary
- SimpleSAMLphp SAML2 library has incorrect signature verification for HTTP-Redirect binding
- Details
-
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.
- Database specific
{ "cwe_ids": [ "CWE-347" ] }- References
-
- https://github.com/simplesamlphp/saml2/security/advisories/GHSA-46r4-f8gj-xg56
- https://github.com/simplesamlphp/saml2/commit/7867d6099dc7f31bed1ea10e5bea159c5623d2a0
- https://github.com/simplesamlphp/saml2/blob/9545abd0d9d48388f2fa00469c5c1e0294f0303e/src/SAML2/HTTPRedirect.php#L104-L113
- https://github.com/simplesamlphp/saml2/blob/9545abd0d9d48388f2fa00469c5c1e0294f0303e/src/SAML2/HTTPRedirect.php#L178-L217
- https://lists.debian.org/debian-lts-announce/2025/05/msg00013.html
Affected packages
Git / github.com/simplesamlphp/saml2
Affected ranges
- Type
- GIT
- Repo
- https://github.com/simplesamlphp/saml2
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
- Type
- GIT
- Repo
- https://github.com/simplesamlphp/saml2
- Events
Affected versions
1.*
1.5.3
4.*
4.6.9
v0.*
v0.1.0
v0.1.0-alpha
v0.3.0
v0.4.0
v0.4.1
v0.4.2
v0.5.0
v0.6.0
v0.6.1
v0.6.2
v0.6.3
v0.6.4
v0.7.0
v0.7.1
v0.8.0
v0.8.1
v1.*
v1.0.0
v1.1.0
v1.2.0
v1.3.0
v1.3.1
v1.3.2
v1.4.0
v1.5.0
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.6.0
v1.6.1
v1.7.0
v1.7.1
v2.*
v2.0.0
v3.*
v3.0.0
v3.0.1
v3.0.2
v3.0.3
v3.1.0
v3.1.1
v3.1.2
v3.1.3
v3.1.4
v3.1.5
v3.1.6
v3.2
v3.2.1
v3.2.2
v3.2.3
v3.2.4
v3.2.5
v3.2.6
v3.3.0
v3.3.2
v3.3.3
v3.3.4
v3.3.5
v3.3.6
v3.4.0
v4.*
v4.0.0
v4.0.1
v4.0.2
v4.0.3
v4.1.0
v4.1.1
v4.1.10
v4.1.11
v4.1.12
v4.1.2
v4.1.3
v4.1.4
v4.1.5
v4.1.6
v4.1.7
v4.1.8
v4.1.9
v4.16.14
v4.2.0
v4.2.1
v4.2.2
v4.2.3
v4.2.4
v4.2.5
v4.2.6
v4.2.7
v4.2.8
v4.3.0
v4.3.1
v4.4.0
v4.4.1
v4.5.0
v4.5.1
v4.6.0
v4.6.1
v4.6.10
v4.6.11
v4.6.12
v4.6.13
v4.6.14
v4.6.15
v4.6.2
v4.6.3
v4.6.4
v4.6.5
v4.6.6
v4.6.7
v4.6.8