CVE-2025-3891

See a problem?
Please try reporting it to the source first.
Source
https://nvd.nist.gov/vuln/detail/CVE-2025-3891
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-3891.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2025-3891
Aliases
Downstream
Related
Published
2025-04-29T12:15:32Z
Modified
2025-09-19T15:27:00.051229Z
Summary
[none]
Details

A flaw was found in the modauthopenidc module for Apache httpd. This flaw allows a remote, unauthenticated attacker to trigger a denial of service by sending an empty POST request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability.

References

Affected packages

Git / github.com/openidc/mod_auth_openidc

Affected ranges

Type
GIT
Repo
https://github.com/openidc/mod_auth_openidc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
6a0b5f66c87184dfe0e4400f6bdd46a82dc0ec2b

Affected versions

2.*

2.3.11rc1

v1.*

v1.5
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.6.0
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.8.0
v1.8.1
v1.8.10
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9

v2.*

v2.0.0
v2.0.0rc1
v2.0.0rc4
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.2.0
v2.3.0
v2.3.0rc0
v2.3.0rc3
v2.3.1
v2.3.10
v2.3.10.1
v2.3.10.2
v2.3.11
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.0.1
v2.4.0.2
v2.4.0.3
v2.4.0.4
v2.4.1
v2.4.10
v2.4.11
v2.4.11.1
v2.4.11.2
v2.4.11.3
v2.4.12
v2.4.12.1
v2.4.12.2
v2.4.12.3
v2.4.13
v2.4.13.1
v2.4.13.2
v2.4.14
v2.4.14.1
v2.4.14.2
v2.4.14.3
v2.4.14.4
v2.4.15
v2.4.15.1
v2.4.15.2
v2.4.15.3
v2.4.15.4
v2.4.15.5
v2.4.15.6
v2.4.15.7
v2.4.16
v2.4.16.1
v2.4.16.10
v2.4.16.11
v2.4.16.2
v2.4.16.3
v2.4.16.4
v2.4.16.5
v2.4.16.6
v2.4.16.7
v2.4.16.8
v2.4.16.9
v2.4.17
v2.4.2
v2.4.2.1
v2.4.3
v2.4.4
v2.4.4.1
v2.4.5
v2.4.6
v2.4.7
v2.4.7.1
v2.4.7.2
v2.4.8.1
v2.4.8.2
v2.4.8.3
v2.4.8.4
v2.4.9
v2.4.9.1
v2.4.9.2
v2.4.9.3
v2.4.9.4

Database specific 

{
    "vanir_signatures": [
        {
            "id": "CVE-2025-3891-0cdcbe7c",
            "digest": {
                "length": 663.0,
                "function_hash": "211198591416651378099077896614660068044"
            },
            "signature_version": "v1",
            "target": {
                "file": "src/mod_auth_openidc.c",
                "function": "oidc_original_request_method"
            },
            "deprecated": false,
            "signature_type": "Function",
            "source": "https://github.com/openidc/mod_auth_openidc/commit/6a0b5f66c87184dfe0e4400f6bdd46a82dc0ec2b"
        },
        {
            "id": "CVE-2025-3891-4b8990d0",
            "digest": {
                "threshold": 0.9,
                "line_hashes": [
                    "239289886643070125605459760189440756043",
                    "229876794043611023403253123313672969009",
                    "263559125609405718920736118279668036461",
                    "44104131586549595805645968922353939301"
                ]
            },
            "signature_version": "v1",
            "target": {
                "file": "src/mod_auth_openidc.c"
            },
            "deprecated": false,
            "signature_type": "Line",
            "source": "https://github.com/openidc/mod_auth_openidc/commit/6a0b5f66c87184dfe0e4400f6bdd46a82dc0ec2b"
        }
    ]
}