CVE-2025-27773

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Source
https://nvd.nist.gov/vuln/detail/CVE-2025-27773
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-27773.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-27773
Aliases
Related
Published
2025-03-11T19:15:43Z
Modified
2025-03-18T09:02:41.906266Z
Summary
[none]
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.

References

Affected packages

Debian:11 / simplesamlphp

Package

Name
simplesamlphp
Purl
pkg:deb/debian/simplesamlphp?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.19.0-1
1.19.0-1+deb11u1
1.19.1-1
1.19.1-1.1
1.19.6-1
1.19.7-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Debian:12 / simplesamlphp

Package

Name
simplesamlphp
Purl
pkg:deb/debian/simplesamlphp?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.19.7-1
1.19.7-1+deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Git / github.com/simplesamlphp/saml2

Affected ranges

Type
GIT
Repo
https://github.com/simplesamlphp/saml2
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
7867d6099dc7f31bed1ea10e5bea159c5623d2a0

Affected versions

1.*

1.5.3

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

v5.*

v5.0.0-alpha.16
v5.0.0-alpha.17
v5.0.0-alpha.18
v5.0.0-alpha.19