CVE-2025-3891

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Source
https://cve.org/CVERecord?id=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
2025-04-29T11:56:50.808Z
Modified
2026-05-31T02:47:18.040590Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
Mod_auth_openidc: dos via empty post in mod_auth_openidc with oidcpreservepost enabled
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.

Database specific 
{
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/3xxx/CVE-2025-3891.json",
    "cwe_ids": [
        "CWE-248"
    ],
    "cna_assigner": "redhat"
}
References

Affected packages

Git / github.com/openidc/mod_auth_openidc

Affected ranges

Type
GIT
Repo
https://github.com/openidc/mod_auth_openidc
Events
Introduced
4fe40bd8bed0c7697f4fb2c3733d02d472cb849e
Fixed
5050a96dca441a921c95521bff6e47caa40c750b

Affected versions

2.*
2.3.11rc1
v2.*
v2.0.0
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
v2.4.2
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 
[
    {
        "digest": {
            "line_hashes": [
                "64978875816620747788720445007160513623",
                "271594790058963848889881620267568419497",
                "192082871201767715712966956076527375237",
                "186523850938774963886596464906350199293"
            ],
            "threshold": 0.9
        },
        "id": "CVE-2025-3891-8d12588a",
        "signature_version": "v1",
        "target": {
            "file": "src/jose.c"
        },
        "deprecated": false,
        "signature_type": "Line",
        "source": "https://github.com/openidc/mod_auth_openidc/commit/5050a96dca441a921c95521bff6e47caa40c750b"
    },
    {
        "digest": {
            "function_hash": "146796389184166318347761834619920743023",
            "length": 407.0
        },
        "id": "CVE-2025-3891-cdcc88f6",
        "signature_version": "v1",
        "target": {
            "file": "src/jose.c",
            "function": "oidc_jwk_list_copy"
        },
        "deprecated": false,
        "signature_type": "Function",
        "source": "https://github.com/openidc/mod_auth_openidc/commit/5050a96dca441a921c95521bff6e47caa40c750b"
    }
]
source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2025-3891.json"
vanir_signatures_modified 
"2026-05-31T02:47:18Z"