CVE catalog

CVE-2022-23527

libapache2-mod-auth-openidc: CVE-2022-23527

[CVE catalog]

Severity
Medium · CVSS 6.1CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.94% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
Debianlibapache2-mod-auth-openidcsid2.4.20.3-1fixed
Debianlibapache2-mod-auth-openidcforky2.4.20.3-1fixed
Debianlibapache2-mod-auth-openidctrixie2.4.17-1fixed
Debianlibapache2-mod-auth-openidctrixie-security2.4.17-1+deb13u1fixed
Debianlibapache2-mod-auth-openidcbookworm2.4.12.3-2+deb12u4fixed
Debianlibapache2-mod-auth-openidcbookworm-security2.4.12.3-2+deb12u5fixed
Opensuseapache2-mod_auth_openidctumbleweed2.4.12.2-1.1fixed
Suseapache2-mod_auth_openidcopenstack cloud 92.4.0-7.9.1fixed
Suseapache2-mod_auth_openidcopenstack cloud crowbar 92.4.0-7.9.1fixed
Suseapache2-mod_auth_openidclinux enterprise server for sap applications 12 sp42.4.0-7.9.1fixed
Suseapache2-mod_auth_openidclinux enterprise server 12 sp4-espos2.4.0-7.9.1fixed
Suseapache2-mod_auth_openidclinux enterprise server 12 sp4-ltss2.4.0-7.9.1fixed
Suseapache2-mod_auth_openidclinux enterprise server 12 sp52.4.0-7.9.1fixed
Suseapache2-mod_auth_openidclinux enterprise server for sap applications 12 sp52.4.0-7.9.1fixed
Ubuntulibapache2-mod-auth-openidc18.042.1.6-1vulnerable
Ubuntulibapache2-mod-auth-openidc18.042.3.1-2vulnerable
Ubuntulibapache2-mod-auth-openidc18.042.3.2-1vulnerable
Ubuntulibapache2-mod-auth-openidc18.042.3.2-1build1vulnerable
Ubuntulibapache2-mod-auth-openidc18.042.3.3-1build1vulnerable
Ubuntulibapache2-mod-auth-openidc20.042.3.10.2-1vulnerable
Ubuntulibapache2-mod-auth-openidc20.042.4.0.4-1vulnerable
Ubuntulibapache2-mod-auth-openidc20.042.4.1-1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.9-1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.9.4-1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.10-1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.10-1build1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.11-1vulnerable
Ubuntulibapache2-mod-auth-openidc22.042.4.11-1ubuntu0.1vulnerable

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
Debianlibapache2-mod-auth-openidcsourcesid2.4.12.2-1not yet assignedNot reported[1026444]
Debianlibapache2-mod-auth-openidcsourceforky2.4.12.2-1not yet assignedNot reported[1026444]
Debianlibapache2-mod-auth-openidcsourcetrixie2.4.12.2-1not yet assignedNot reported[1026444]
Debianlibapache2-mod-auth-openidcsourcebookworm2.4.12.2-1not yet assignedNot reported[1026444]
Opensuseapache2-mod_auth_openidcrpmtumbleweed2.4.12.2-1.1Not reportedOPENSUSE-SU-2024:12584-1Not reported
Suseapache2-mod_auth_openidcrpmopenstack cloud 92.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmopenstack cloud crowbar 92.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmlinux enterprise server for sap applications 12 sp42.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmlinux enterprise server 12 sp4-espos2.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmlinux enterprise server 12 sp4-ltss2.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmlinux enterprise server 12 sp52.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported
Suseapache2-mod_auth_openidcrpmlinux enterprise server for sap applications 12 sp52.4.0-7.9.1Not reportedSUSE-SU-2023:1837-1Not reported

[Debian bug #1026444]

OpenFactory catalog packages

Matching against OpenFactory catalog package versions is in progress.

[Debian 12 (Bookworm)]

  • [libapache2-mod-auth-openidc]Unknown
    Details (4)

    • 2.4.12.3-2+deb12u4 · amd64 · bookworm

      Fixed · Fixed: 2.4.12.2-1

      dsa · libapache2-mod-auth-openidc · debian · bookworm

    • 2.4.12.3-2+deb12u4 · arm64 · bookworm

      Fixed · Fixed: 2.4.12.2-1

      dsa · libapache2-mod-auth-openidc · debian · bookworm

    • 2.4.12.3-2+deb12u4 · amd64 · bookworm-security

      Fixed · Fixed: 2.4.12.2-1

      dsa · libapache2-mod-auth-openidc · debian · bookworm

    • 2.4.12.3-2+deb12u4 · arm64 · bookworm-security

      Fixed · Fixed: 2.4.12.2-1

      dsa · libapache2-mod-auth-openidc · debian · bookworm

[openSUSE Tumbleweed]

Observed:

References

[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]