CVE-2022-23527 — Open Redirect in MOD Auth Openidc

Vendor	Product	Version range	Fixed in
debian	debian_linux	—	—
debian	libapache2-mod-auth-openidc	< libapache2-mod-auth-openidc 2.4.12.2-1 (bookworm)	libapache2-mod-auth-openidc 2.4.12.2-1 (bookworm)
msrc	cbl2_mod_auth_openidc_2.4.14.2-1_on_cbl_mariner_2.0	—	—
openidc	mod_auth_openidc	< 2.4.12.2	2.4.12.2
zmartzone	mod_auth_openidc	< 2.4.12.2	2.4.12.2

Red Hat

mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character

vendor_redhat·2022-12-14·CVSS 4.7

CVE-2022-23527 [MEDIUM] CWE-601 mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character mod_auth_openidc: Open Redirect in oidc_validate_redirect_url() using tab character 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. An open redirect vulnerability was found in mod_auth_openidc, an OpenID Certified™ authentication and authorizati

Microsoft

Open Redirect in oidc_validate_redirect_url()

vendor_msrc·2022-12-13·CVSS 6.1

CVE-2022-23527 [MEDIUM] CWE-601 Open Redirect in oidc_validate_redirect_url() Open Redirect in oidc_validate_redirect_url() FAQ: Is Azure Linux the only Microsoft product that includes this open-source library and is therefore potentially affected by this vulnerability? One of the main benefits to our customers who choose to use the Azure Linux distro is the commitment to keep it up to date with the most recent and most secure versions of the open source libraries with which the distro is composed. Microsoft is committed to transparency in this work which is why we began publishing CSAF/VEX in October 2025. See this blog post for more information. If impact to additional products is identified, we will update the CVE to reflect this. Mariner: Mariner GitHub_M: GitHub_M Customer Action Required: Yes Remediation: CBL-Mariner Releases Reference: https://learn.mic

Debian

CVE-2022-23527: libapache2-mod-auth-openidc - mod_auth_openidc is an OpenID Certified™ authentication and authorization module...

vendor_debian·2022·CVSS 4.7

CVE-2022-23527 [MEDIUM] CVE-2022-23527: libapache2-mod-auth-openidc - mod_auth_openidc is an OpenID Certified™ authentication and authorization module... 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. Scope: local bookworm: resolved (fixed in 2.4.12.2-1) bullseye: resolved (fixed in 2.4.9.4-0+deb11u2) forky: resolved (fixed in 2.4.12.2-1) sid: resolved (fixed in 2.4.12.2-1) trixie: resolved (fixed

OSV

CVE-2022-23527: mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2

osv·2022-12-14·CVSS 6.1

CVE-2022-23527 [MEDIUM] CVE-2022-23527: mod_auth_openidc is an OpenID Certified™ authentication and authorization module for the Apache 2 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.

CVE-2022-23527: 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…

Affected

CVSS provenance