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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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade cjoseUpgrade mod_auth_openidcUpgrade cjose-devel | May 9, 2025 | Apr 29, 2025 |
| Debian | — | Upgrade libapache2-mod-auth-openidc | May 9, 2025 | Apr 29, 2025 |
| Oracle_linux | — | Upgrade cjose-develUpgrade mod_auth_openidcUpgrade cjose | May 8, 2025 | Apr 29, 2025 |
| Redhat_linux | — | Upgrade mod_auth_openidc-debugsourceUpgrade mod_auth_openidcUpgrade mod_auth_openidc-debuginfo | May 8, 2025 | Apr 29, 2025 |
| Rocky_linux | — | Upgrade cjoseUpgrade mod_auth_openidc-debuginfoUpgrade cjose-debugsourceUpgrade mod_auth_openidc-debugsourceUpgrade cjose-debuginfoUpgrade cjose-develUpgrade mod_auth_openidc | Sep 9, 2025 | Jul 29, 2025 |
| Suse | — | Upgrade apache2-mod_auth_openidc | May 20, 2025 | Apr 29, 2025 |
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