CVE-2025-3891 — Mod_auth_openidc: dos via empty post in mod_auth_openidc with oidcpreservepost enabled
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 req…
Published: 2025-04-29 · CVSS: 7.5 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7