{"id":"BIT-apache-2025-3891","details":"A flaw was found in the mod_auth_openidc 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.","aliases":["CVE-2025-3891","GHSA-x7cf-8wgv-5j86"],"modified":"2025-07-28T14:56:48.756130Z","published":"2025-05-13T05:37:35.931Z","database_specific":{"cpes":["cpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*"],"severity":"High"},"references":[{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2025:4597"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2025-3891"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2361633"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2025/05/msg00007.html"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-3891"}],"affected":[{"package":{"name":"apache","ecosystem":"Bitnami","purl":"pkg:bitnami/apache"},"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/apache/BIT-apache-2025-3891.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}],"schema_version":"1.7.3"}