CVE-2021-39191 is an open redirect vulnerability affecting mod_auth_openidc versions prior to 2.4.9.4, which is an Apache module for OpenID Connect authentication. This flaw allows an attacker to redirect users to arbitrary malicious sites by manipulating the target_link_uri parameter. With a CVSS score of 6.1 (Medium), the vulnerability requires user interaction and could lead to information disclosure or phishing attacks. There is no evidence of active exploitation, publicly available exploit code, or significant community discussion surrounding this CVE. Upgrading to version 2.4.9.4 or later is the only known remediation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
< 2.4.9.4CPE matchmatch criteria | cpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:* | ||
35CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* | ||
36CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:* | ||
10.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
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