CVE-2025-31492 SUSE CVE security@suse.de SUSE Security Team SUSE CVE-2025-31492 Interim 1 16 2026-03-05T01:09:16Z current 2025-04-07T23:12:04Z 2026-03-05T01:09:16Z cve-database/bin/generate-cvrf-cve.pl 2020-12-27T01:00:00Z CVE-2025-31492 mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.16.11, a bug in a mod_auth_openidc results in disclosure of protected content to unauthenticated users. The conditions for disclosure are an OIDCProviderAuthRequestMethod POST, a valid account, and there mustn't be any application-level gateway (or load balancer etc) protecting the server. When you request a protected resource, the response includes the HTTP status, the HTTP headers, the intended response (the self-submitting form), and the protected resource (with no headers). This is an example of a request for a protected resource, including all the data returned. In the case where mod_auth_openidc returns a form, it has to return OK from check_userid so as not to go down the error path in httpd. This means httpd will try to issue the protected resource. oidc_content_handler is called early, which has the opportunity to prevent the normal output being issued by httpd. oidc_content_handler has a number of checks for when it intervenes, but it doesn't check for this case, so the handler returns DECLINED. Consequently, httpd appends the protected content to the response. The issue has been patched in mod_auth_openidc versions >= 2.4.16.11. The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-April/001043.html E-Mail link for RHSA-2025:3997 https://lists.suse.com/pipermail/suse-liberty-linux-updates/2025-May/001300.html E-Mail link for RHSA-2025:7419 https://lists.suse.com/pipermail/sle-updates/2025-April/039009.html E-Mail link for SUSE-SU-2025:1286-1 https://lists.suse.com/pipermail/sle-updates/2025-April/039032.html E-Mail link for SUSE-SU-2025:1324-1 https://lists.suse.com/pipermail/sle-updates/2025-April/039057.html E-Mail link for SUSE-SU-2025:1337-1 https://lists.suse.com/pipermail/sle-security-updates/2025-May/020800.html E-Mail link for SUSE-SU-2025:1465-1 https://lists.suse.com/pipermail/sle-security-updates/2025-December/023659.html E-Mail link for SUSE-SU-2025:4532-1 https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/UVSFHJSVTYXCGOB23YKUXLYGYQ2KA5HL/ E-Mail link for openSUSE-SU-2025:14972-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings SUSE Enterprise Storage 7.1 SUSE Liberty Linux 8 SUSE Liberty Linux 9 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Linux Enterprise Server 12 SP4-LTSS SUSE Linux Enterprise Server 12 SP5-LTSS SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA SUSE Linux Enterprise Server 15 SP3-LTSS SUSE Linux Enterprise Server 15 SP4-LTSS SUSE Linux Enterprise Server 15 SP4-TERADATA SUSE Linux Enterprise Server 15 SP5-LTSS SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Linux Enterprise Server 16.0 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 SUSE Linux Enterprise Server for SAP Applications 15 SP3 SUSE Linux Enterprise Server for SAP Applications 15 SP4 SUSE Linux Enterprise Server for SAP Applications 15 SP5 SUSE Linux Enterprise Module for Server Applications 15 SP6 SUSE Linux Enterprise Module for Server Applications 15 SP7 SUSE Manager Proxy 4.3 SUSE Manager Retail Branch Server 4.3 SUSE Manager Server 4.3 openSUSE Leap 15.6 openSUSE Tumbleweed apache2-mod_auth_openidc apache2-mod_auth_openidc-2.3.8-150100.3.31.1 apache2-mod_auth_openidc-2.4.0-7.19.1 apache2-mod_auth_openidc-2.4.16.11-1.1 apache2-mod_auth_openidc-2.4.17-160000.2.2 apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 cjose-0.6.1-4.module+el8.10.0+21813+b5444eb8 cjose-devel-0.6.1-4.module+el8.10.0+21813+b5444eb8 mod_auth_openidc-2.4.10-1.el9_6.1 mod_auth_openidc-2.4.9.4-7.module+el8.10.0+23023+ba6d7066 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Enterprise Storage 7.1 cjose-0.6.1-4.module+el8.10.0+21813+b5444eb8 as a component of SUSE Liberty Linux 8 cjose-devel-0.6.1-4.module+el8.10.0+21813+b5444eb8 as a component of SUSE Liberty Linux 8 mod_auth_openidc-2.4.9.4-7.module+el8.10.0+23023+ba6d7066 as a component of SUSE Liberty Linux 8 mod_auth_openidc-2.4.10-1.el9_6.1 as a component of SUSE Liberty Linux 9 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP6 apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 as a component of SUSE Linux Enterprise Module for Server Applications 15 SP7 apache2-mod_auth_openidc-2.4.0-7.19.1 as a component of SUSE Linux Enterprise Server 12 SP5-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server 15 SP3-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server 15 SP4-LTSS apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server 15 SP4-TERADATA apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server 15 SP5-LTSS apache2-mod_auth_openidc-2.4.17-160000.2.2 as a component of SUSE Linux Enterprise Server 16.0 apache2-mod_auth_openidc-2.4.0-7.19.1 as a component of SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP3 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP4 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Linux Enterprise Server for SAP Applications 15 SP5 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Manager Proxy 4.3 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Manager Retail Branch Server 4.3 apache2-mod_auth_openidc-2.3.8-150100.3.31.1 as a component of SUSE Manager Server 4.3 apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 as a component of openSUSE Leap 15.6 apache2-mod_auth_openidc-2.4.16.11-1.1 as a component of openSUSE Tumbleweed apache2-mod_auth_openidc as a component of SUSE Linux Enterprise Server 12 SP4-LTSS mod_auth_openidc is an OpenID Certified authentication and authorization module for the Apache 2.x HTTP server that implements the OpenID Connect Relying Party functionality. Prior to 2.4.16.11, a bug in a mod_auth_openidc results in disclosure of protected content to unauthenticated users. The conditions for disclosure are an OIDCProviderAuthRequestMethod POST, a valid account, and there mustn't be any application-level gateway (or load balancer etc) protecting the server. When you request a protected resource, the response includes the HTTP status, the HTTP headers, the intended response (the self-submitting form), and the protected resource (with no headers). This is an example of a request for a protected resource, including all the data returned. In the case where mod_auth_openidc returns a form, it has to return OK from check_userid so as not to go down the error path in httpd. This means httpd will try to issue the protected resource. oidc_content_handler is called early, which has the opportunity to prevent the normal output being issued by httpd. oidc_content_handler has a number of checks for when it intervenes, but it doesn't check for this case, so the handler returns DECLINED. Consequently, httpd appends the protected content to the response. The issue has been patched in mod_auth_openidc versions >= 2.4.16.11. CVE-2025-31492 SUSE Enterprise Storage 7.1:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Liberty Linux 8:cjose-0.6.1-4.module+el8.10.0+21813+b5444eb8 SUSE Liberty Linux 8:cjose-devel-0.6.1-4.module+el8.10.0+21813+b5444eb8 SUSE Liberty Linux 8:mod_auth_openidc-2.4.9.4-7.module+el8.10.0+23023+ba6d7066 SUSE Liberty Linux 9:mod_auth_openidc-2.4.10-1.el9_6.1 SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise High Performance Computing 15 SP5-ESPOS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise High Performance Computing 15 SP5-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Module for Server Applications 15 SP6:apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 SUSE Linux Enterprise Module for Server Applications 15 SP7:apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 SUSE Linux Enterprise Server 12 SP5-LTSS:apache2-mod_auth_openidc-2.4.0-7.19.1 SUSE Linux Enterprise Server 15 SP2-LTSS-TERADATA:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server 15 SP3-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server 15 SP4-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server 15 SP4-TERADATA:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server 15 SP5-LTSS:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server 16.0:apache2-mod_auth_openidc-2.4.17-160000.2.2 SUSE Linux Enterprise Server LTSS Extended Security 12 SP5:apache2-mod_auth_openidc-2.4.0-7.19.1 SUSE Linux Enterprise Server for SAP Applications 15 SP3:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server for SAP Applications 15 SP4:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Linux Enterprise Server for SAP Applications 15 SP5:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Manager Proxy 4.3:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Manager Retail Branch Server 4.3:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 SUSE Manager Server 4.3:apache2-mod_auth_openidc-2.3.8-150100.3.31.1 openSUSE Leap 15.6:apache2-mod_auth_openidc-2.4.17.1-150600.16.14.1 openSUSE Tumbleweed:apache2-mod_auth_openidc-2.4.16.11-1.1 important 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N