CVE-2021-39191
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2021-39191
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-39191.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2021-39191
- Downstream
- Related
- Published
- 2021-09-03T14:15:07Z
- Modified
- 2025-10-15T13:11:04.984618Z
- Severity
-
- 6.1 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N CVSS Calculator
- Summary
- [none]
- Details
-
modauthopenidc is an authentication/authorization module for the Apache 2.x HTTP server that functions as an OpenID Connect Relying Party, authenticating users against an OpenID Connect Provider. In versions prior to 2.4.9.4, the 3rd-party init SSO functionality of modauthopenidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the
target_link_uriparameter. A patch in version 2.4.9.4 made it so that theOIDCRedirectURLsAllowedsetting must be applied to thetarget_link_uriparameter. There are no known workarounds aside from upgrading to a patched version. - References
-
- https://github.com/zmartzone/mod_auth_openidc/commit/03e6bfb446f4e3f27c003d30d6a433e5dd8e2b3d
- https://github.com/zmartzone/mod_auth_openidc/releases/tag/v2.4.9.4
- https://github.com/zmartzone/mod_auth_openidc/security/advisories/GHSA-2pgf-8h6h-gqg2
- https://lists.debian.org/debian-lts-announce/2023/07/msg00020.html
- https://github.com/zmartzone/mod_auth_openidc/issues/672
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/32RGPW5LZDLDTB7MKZIGAHPSLFOUNWR5/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RHXO4O4G2UQS7X6OQJCVZKHZAQ7SAIFB/
Affected packages
Git / github.com/openidc/mod_auth_openidc
Affected ranges
- Type
- GIT
- Repo
- https://github.com/openidc/mod_auth_openidc
- Events
-
Introduced0 Unknown introduced commit / All previous commits are affectedFixed
Affected versions
2.*
2.3.11rc1
v1.*
v1.5
v1.5.1
v1.5.2
v1.5.3
v1.5.4
v1.5.5
v1.6.0
v1.7.0
v1.7.1
v1.7.2
v1.7.3
v1.8.0
v1.8.1
v1.8.10
v1.8.2
v1.8.3
v1.8.4
v1.8.5
v1.8.6
v1.8.7
v1.8.8
v1.8.9
v2.*
v2.0.0
v2.0.0rc1
v2.0.0rc4
v2.1.0
v2.1.1
v2.1.2
v2.1.3
v2.1.4
v2.1.5
v2.1.6
v2.2.0
v2.3.0
v2.3.0rc0
v2.3.0rc3
v2.3.1
v2.3.10
v2.3.10.1
v2.3.10.2
v2.3.11
v2.3.2
v2.3.3
v2.3.4
v2.3.5
v2.3.6
v2.3.7
v2.3.8
v2.3.9
v2.4.0
v2.4.0.1
v2.4.0.2
v2.4.0.3
v2.4.0.4
v2.4.1
v2.4.2
v2.4.2.1
v2.4.3
v2.4.4
v2.4.4.1
v2.4.5
v2.4.6
v2.4.7
v2.4.7.1
v2.4.7.2
v2.4.8.1
v2.4.8.2
v2.4.8.3
v2.4.8.4
v2.4.9
v2.4.9.1
v2.4.9.2
v2.4.9.3
Database specific
vanir_signatures
[
{
"digest": {
"length": 3326.0,
"function_hash": "255789951588007788344141961223198622431"
},
"signature_type": "Function",
"target": {
"function": "oidc_handle_discovery_response",
"file": "src/mod_auth_openidc.c"
},
"deprecated": false,
"source": "https://github.com/openidc/mod_auth_openidc/commit/03e6bfb446f4e3f27c003d30d6a433e5dd8e2b3d",
"signature_version": "v1",
"id": "CVE-2021-39191-1d53a487"
}
]