CVE-2025-3891
published 2025-04-29CVE-2025-3891: 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…
PriorityP346high7.5CVSS 3.1
AVNACLPRNUINSUCNINAH
EPSS
1.58%
75.3th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | debian_linux | — | — |
| debian | libapache2-mod-auth-openidc | < libapache2-mod-auth-openidc 2.4.12.3-2+deb12u4 (bookworm) | libapache2-mod-auth-openidc 2.4.12.3-2+deb12u4 (bookworm) |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
| redhat | enterprise_linux | — | — |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
osv7.5HIGH
vendor_debian7.5HIGH
vendor_redhat7.5HIGH
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Red Hat
mod_auth_openidc: DoS via Empty POST in mod_auth_openidc with OIDCPreservePost Enabled
vendor_redhat·2025-04-29·CVSS 7.5
CVE-2025-3891 [HIGH] CWE-248 mod_auth_openidc: DoS via Empty POST in mod_auth_openidc with OIDCPreservePost Enabled
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 request when the OIDCPreservePost directive is enabled. The server crashes consistently, affecting availability.
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.
Package: mod_auth_openidc (Red Hat Enterprise Linux 10) - Fix deferred
Package: mod_auth_openidc (Red Hat Enterprise Linux 7) - Not aff
Debian
CVE-2025-3891: libapache2-mod-auth-openidc - A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allo...
vendor_debian·2025·CVSS 7.5
CVE-2025-3891 [HIGH] CVE-2025-3891: libapache2-mod-auth-openidc - A flaw was found in the mod_auth_openidc module for Apache httpd. This flaw allo...
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.
Scope: local
bookworm: resolved (fixed in 2.4.12.3-2+deb12u4)
bullseye: resolved (fixed in 2.4.9.4-0+deb11u6)
forky: resolved (fixed in 2.4.14.2-1)
sid: resolved (fixed in 2.4.14.2-1)
trixie: resolved (fixed in 2.4.14.2-1)
GHSA
GHSA-v96g-5j57-774c: A flaw was found in the mod_auth_openidc module for Apache httpd
ghsa_unreviewed·2025-04-29
CVE-2025-3891 [MEDIUM] CWE-248 GHSA-v96g-5j57-774c: A flaw was found in the mod_auth_openidc module for Apache httpd
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.
OSV
CVE-2025-3891: A flaw was found in the mod_auth_openidc module for Apache httpd
osv·2025-04-29·CVSS 7.5
CVE-2025-3891 [HIGH] CVE-2025-3891: A flaw was found in the mod_auth_openidc module for Apache httpd
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.
No detection rules found.
No public exploits indexed.
https://access.redhat.com/errata/RHSA-2025:10002https://access.redhat.com/errata/RHSA-2025:10003https://access.redhat.com/errata/RHSA-2025:10004https://access.redhat.com/errata/RHSA-2025:10006https://access.redhat.com/errata/RHSA-2025:10007https://access.redhat.com/errata/RHSA-2025:10008https://access.redhat.com/errata/RHSA-2025:10010https://access.redhat.com/errata/RHSA-2025:4597https://access.redhat.com/errata/RHSA-2025:9396https://access.redhat.com/security/cve/CVE-2025-3891https://bugzilla.redhat.com/show_bug.cgi?id=2361633https://github.com/OpenIDC/mod_auth_openidc/commit/6a0b5f66c87184dfe0e4400f6bdd46a82dc0ec2bhttps://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-x7cf-8wgv-5j86https://lists.debian.org/debian-lts-announce/2025/05/msg00007.html
2025-04-29
Published