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CVE-2022-23527 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:6.1 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

CNA: [email protected]CVSS-B:4.7 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/zmartzone/mod_auth_openidc/blob/v2.4.12.1/auth_openidc.conf#L975-L984	CVE	Product
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-q6f2-285m-gr53	CVE	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00020.html	CVE	Mailing List
https://github.com/zmartzone/mod_auth_openidc/blob/v2.4.12.1/auth_openidc.conf#L975-L984	[email protected]	Product
https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-q6f2-285m-gr53	[email protected]	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2023/07/msg00020.html	[email protected]	Mailing List

see all 6 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-601	URL Redirection to Untrusted Site ('Open Redirect')	[email protected]
CWE-601	URL Redirection to Untrusted Site ('Open Redirect')	[email protected]

Affected Products

Product	Versions
openidc mod auth openidc	< 2.4.12.2
CPE cpe:2.3:a:openidc:mod_auth_openidc:::::::: Remediation No remediation found in references.
debian debian linux	10.0
CPE cpe:2.3:o:debian:debian_linux:10.0:::::::* Remediation No remediation found in references.

Change History

8 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 21, 2023	Modified Analysis	[email protected]
Jul 19, 2023	CVE Modified	[email protected]
May 25, 2023	CPE Deprecation Remap	[email protected]
Dec 16, 2022	Initial Analysis	[email protected]