FKIE_CVE-2025-3891

Vulnerability from fkie_nvd - Published: 2025-04-29 12:15 - Updated: 2026-06-17 09:20
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
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.
References
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10002
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10003
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10004
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10006
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10007
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10008
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:10010
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:4597Third Party Advisory
secalert@redhat.comhttps://access.redhat.com/errata/RHSA-2025:9396
secalert@redhat.comhttps://access.redhat.com/security/cve/CVE-2025-3891Third Party Advisory
secalert@redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2361633Issue Tracking
secalert@redhat.comhttps://github.com/OpenIDC/mod_auth_openidc/commit/6a0b5f66c87184dfe0e4400f6bdd46a82dc0ec2b
secalert@redhat.comhttps://github.com/OpenIDC/mod_auth_openidc/security/advisories/GHSA-x7cf-8wgv-5j86
af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2025/05/msg00007.htmlMailing List, Third Party Advisory
Impacted products
Vendor Product Version
apache http_server -
redhat enterprise_linux 7.0
redhat enterprise_linux 8.0
redhat enterprise_linux 9.0
debian debian_linux 11.0
To clipboard 

{
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  "lastModified": "2026-06-17T09:20:52.373",
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}


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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.