CVE-2026-41669

Source
https://cve.org/CVERecord?id=CVE-2026-41669
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41669.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-41669
Aliases
Published
2026-05-07T03:00:29.816Z
Modified
2026-08-04T11:50:55.403833352Z
Severity
  • 8.2 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:N CVSS Calculator
Summary
Admidio: SAML Signature Validation Result Ignored — Forged AuthnRequests and LogoutRequests Processed
Details

Admidio is an open-source user management solution. Prior to version 5.0.9, the Admidio SAML Identity Provider implementation discards the return value of its validateSignature() method at both call sites (handleSSORequest() line 418 and handleSLORequest() line 613). The method returns error strings on failure rather than throwing exceptions, but the developer believed it would throw (per comments on lines 416 and 611). This means the smcrequireauth_signed configuration option is completely ineffective — unsigned or invalidly-signed SAML AuthnRequests and LogoutRequests are processed identically to properly signed ones. This issue has been patched in version 5.0.9.

Database specific
{
    "cwe_ids": [
        "CWE-347"
    ],
    "cna_assigner": "GitHub_M",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/41xxx/CVE-2026-41669.json"
}
References

Affected packages

Git / github.com/admidio/admidio

Affected ranges

Type
GIT
Repo
https://github.com/admidio/admidio
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "source": "AFFECTED_FIELD",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "5.0.9"
        }
    ]
}

Affected versions

3.*
3.0-Beta.1
3.0-Beta.3
v3.*
v3.0.6
v3.1.5
v3.2-Beta.1
Other
v34
v4.*
v4.0-Beta.1
v4.1-Beta.2
v4.3-Beta.1
v5.*
v5.0-Beta.1
v5.0-Beta.2
v5.0-Beta.3
v5.0.0
v5.0.1
v5.0.2
v5.0.3
v5.0.4
v5.0.5
v5.0.6
v5.0.7
v5.0.8

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-41669.json"