vulnerability
Red Hat: CVE-2025-3891: mod_auth_openidc: DoS via Empty POST in mod_auth_openidc with OIDCPreservePost Enabled (Multiple Advisories)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 8 | (AV:N/AC:L/Au:N/C:N/I:N/A:C) | Apr 29, 2025 | May 8, 2025 | Nov 14, 2025 |
Severity
8
CVSS
(AV:N/AC:L/Au:N/C:N/I:N/A:C)
Published
Apr 29, 2025
Added
May 8, 2025
Modified
Nov 14, 2025
Description
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.
Solutions
redhat-upgrade-mod_auth_openidcredhat-upgrade-mod_auth_openidc-debuginforedhat-upgrade-mod_auth_openidc-debugsource
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