Medium severity4.7NVD Advisory· Published Dec 14, 2022· Updated Jun 17, 2026
CVE-2022-23527
CVE-2022-23527
Description
mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2.x HTTP server. Versions prior to 2.4.12.2 are vulnerable to Open Redirect. When providing a logout parameter to the redirect URI, the existing code in oidc_validate_redirect_url() does not properly check for URLs that start with /\t, leading to an open redirect. This issue has been patched in version 2.4.12.2. Users unable to upgrade can mitigate the issue by configuring mod_auth_openidc to only allow redirection when the destination matches a given regular expression with OIDCRedirectURLsAllowed.
AI Insight
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Affected products
19- Range: <2.4.12.2
- osv-coords17 versionspkg:rpm/almalinux/cjosepkg:rpm/almalinux/cjose-develpkg:rpm/almalinux/mod_auth_openidcpkg:rpm/opensuse/apache2-mod_auth_openidc&distro=openSUSE%20Leap%2015.4pkg:rpm/opensuse/apache2-mod_auth_openidc&distro=openSUSE%20Leap%2015.6pkg:rpm/opensuse/apache2-mod_auth_openidc&distro=openSUSE%20Tumbleweedpkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP4pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP6pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Module%20for%20Server%20Applications%2015%20SP7pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Real%20Time%2015%20SP3pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-ESPOSpkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4-LTSSpkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP5pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP5pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20OpenStack%20Cloud%209pkg:rpm/suse/apache2-mod_auth_openidc&distro=SUSE%20OpenStack%20Cloud%20Crowbar%209
< 0.6.1-4.module_el8.9.0+3631+0ced13d7+ 16 more
- (no CPE)range: < 0.6.1-4.module_el8.9.0+3631+0ced13d7
- (no CPE)range: < 0.6.1-4.module_el8.9.0+3631+0ced13d7
- (no CPE)range: < 2.4.9.4-4.el9
- (no CPE)range: < 2.3.8-150100.3.22.1
- (no CPE)range: < 2.4.17.1-150600.16.14.1
- (no CPE)range: < 2.4.12.2-1.1
- (no CPE)range: < 2.3.8-150100.3.22.1
- (no CPE)range: < 2.4.17.1-150600.16.14.1
- (no CPE)range: < 2.4.17.1-150600.16.14.1
- (no CPE)range: < 2.3.8-150100.3.22.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- (no CPE)range: < 2.4.0-7.9.1
- Range: < 2.4.12.2
Patches
Vulnerability mechanics
References
3News mentions
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