CVE-2025-3891

CVE.org · Published

Record status: Published
Identifier year (not publication year): 2025
Source publication: Apr 29, 2025
Source updated: Jun 29, 2026
Imported by cveboard: Oct 24, 2026
Source snapshot: cve_2026-10-24_midnight_baseline · Oct 24, 2026

CNA source text (English)

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.

Scoped product and version facts

Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.

Exploitation unknown; this catalogue does not assess exploitation.

mod_auth_openidc

Vendor: Unknown
Product: Unknown
Platforms: Unknown
Default status: unaffected
Package: mod_auth_openidc
Package collection: https://github.com/OpenIDC/mod_auth_openidc

mod_auth_openidc · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
2.0.0	`affected`	semver	2.4.13.1	Unavailable	None listed

Red Hat Enterprise Linux 8

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8100020250426100353.489197e6	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.2 Advanced Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.2 Advanced Update Support
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.2 Advanced Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8020020250612174445.4cda2c84	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8040020250618101351.522a0ee4	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8060020250617090503.ad008a3a	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.6 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.6 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.6 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8060020250617090503.ad008a3a	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8060020250617090503.ad008a3a	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.8 Telecommunications Update Service

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.8 Telecommunications Update Service
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.8 Telecommunications Update Service · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8080020250617090716.63b34585	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc:2.3
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
8080020250617090716.63b34585	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9 · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:2.4.10-1.el9_6.2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:2.4.9.4-1.el9_0.3	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:2.4.9.4-1.el9_2.3	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 9.4 Extended Update Support

Vendor: Red Hat
Product: Red Hat Enterprise Linux 9.4 Extended Update Support
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

Red Hat Enterprise Linux 9.4 Extended Update Support · Scoped product and version facts
Version (version)	Status (status)	Version scheme (versionType)	Exclusive end (lessThan)	Inclusive end (lessThanOrEqual)	Status changes (at → status)
0:2.4.9.4-4.el9_4.2	`unaffected`	rpm	*	Unavailable	None listed

Red Hat Enterprise Linux 10

Vendor: Red Hat
Product: Red Hat Enterprise Linux 10
Platforms: Unknown
Default status: affected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.

Red Hat Enterprise Linux 7

Vendor: Red Hat
Product: Red Hat Enterprise Linux 7
Platforms: Unknown
Default status: unaffected
Package: mod_auth_openidc
Package collection: https://access.redhat.com/downloads/content/package-browser/

No explicit version tuples; consult this entry's default status.