CVE-2025-3891
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- CVE-2025-3891
CVE Details
| Release Date: | 2025-04-29 | |
| Impact: | Important | What is this? |
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.
See more information about CVE-2025-3891 from MITRE CVE dictionary and NIST NVD
NOTE: The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 metrics
| Base Score: | 7.5 |
| Vector String: | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| Version: | 3.1 |
| Attack Vector: | Network |
| Attack Complexity: | Low |
| Privileges Required: | None |
| User Interaction: | None |
| Scope: | Unchanged |
| Confidentiality Impact: | None |
| Integrity Impact: | None |
| Availability Impact: | High |
Errata information
| Platform | Errata | Release Date |
| Oracle Linux version 8 (cjose) | ELSA-2025-4597 | 2025-05-07 |
| Oracle Linux version 8 (mod_auth_openidc) | ELSA-2025-4597 | 2025-05-07 |
| Oracle Linux version 9 (mod_auth_openidc) | ELSA-2025-9396 | 2025-06-23 |
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