CVE-2021-32792

mod_auth_openidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In mod_auth_openidc before version 2.4.9, there is an XSS vulnerability in when using `OIDCPreservePost On`.

• CWE-79
• CWE-79

• https://github.com/zmartzone/mod_auth_openidc/commit/00c315cb0c8ab77c67be4a2ac08a71a83ac58751Patch, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/commit/55ea0a085290cd2c8cdfdd960a230cbc38ba8b56Patch, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9Release Notes, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-458c-7pwg-3j7jPatch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
• https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/commit/00c315cb0c8ab77c67be4a2ac08a71a83ac58751Patch, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/commit/55ea0a085290cd2c8cdfdd960a230cbc38ba8b56Patch, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9Release Notes, Third Party Advisory
• https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-458c-7pwg-3j7jPatch, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2023/04/msg00034.html
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZVF6BSJLRQZ7PFFR4X5JSU6KUJYNOCU/
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/QXAWKPT5LXZSUTFSJ6IWSZC7RMYYQXQD/
• https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory

Published

Jul 26, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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