Open Redirect Affecting apache2-mod_auth_openidc package, versions <2.4.17.1-150600.16.14.1


Severity

Recommended
0.0
medium
0
10

Based on SUSE Linux Enterprise Server security rating.

Threat Intelligence

EPSS
0.94% (61st percentile)

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  • Snyk IDSNYK-SLES156-APACHE2MODAUTHOPENIDC-14724269
  • published30 Dec 2025
  • disclosed29 Dec 2025

Introduced: 29 Dec 2025

CVE-2022-23527  (opens in a new tab)
CWE-601  (opens in a new tab)

How to fix?

Upgrade SLES:15.6 apache2-mod_auth_openidc to version 2.4.17.1-150600.16.14.1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream apache2-mod_auth_openidc package and not the apache2-mod_auth_openidc package as distributed by SLES. See How to fix? for SLES:15.6 relevant fixed versions and status.

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.

CVSS Base Scores

version 3.1