CVE-2021-39191

mediumPriorität · verfolgen · 25EPSS 0.017 · 78. PerzentilDEEUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

1.74% (78th) EPSS

CVSS 5.8 · medium

Is it mine?

40 products

Prüfe deine Angriffsfläche

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · nvd

EPSS · bewertet 2026-10-27

mod_auth_openidc 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 mod_auth_openidc was reported to be vulnerable to an open redirect attack by supplying a crafted URL in the `target_link_uri` parameter. A patch in version 2.4.9.4 made it so that the `OIDCRedirectURLsAllowed` setting must be applied to the `target_link_uri` parameter. There are no known workarounds aside from upgrading to a patched version.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.src (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobencjose-devel-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.src (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debuginfo-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823
Behobenmod_auth_openidc-debugsource-0:2.3.7-11.module+el8.6.0+14082+b6f23e95.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)redhat_csaf
For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2022:1823

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

6.1

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.05.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Nprimary · NVD / NIST USAusnutzbarkeit 8.6 · Auswirkung 4.9

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nprimary · NVD / NIST USAusnutzbarkeit 2.8 · Auswirkung 2.7

v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Nsecondary · ENISA EU

v3.14.7mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:Nsecondary · security-advisories@github.comAusnutzbarkeit 2.8 · Auswirkung 1.4

v3.15.6mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

v3.16.1mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:Nsecondary · Red Hat Product Security US

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-601USprimärCWE-601US

betroffene Produkte (40)

Betroffene Produkte und Versionsbereiche.

Debian Linuxalle Versionencert_bundDEcpe:/o:debian:debian_linux:-
Fedora Linuxalle Versionencert_bundDEcpe:/o:fedoraproject:fedora:-
Oracle Linuxalle Versionencert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linux 8alle Versionencert_bundDEcpe:/o:redhat:enterprise_linux:8
SUSE Linuxalle Versionencert_bundDEcpe:/o:suse:suse_linux:-
ZmartZone mod_auth_openidc≤ ≤2.4.9.3enisa_euvdEU
debian debian linux= 10.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
fedoraproject fedora= 35nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
fedoraproject fedora= 36nvdUScpe:2.3:o:fedoraproject:fedora:*:*:*:*:*:*:*:*
openidc mod auth openidc< 2.4.9.4nvdUScpe:2.3:a:openidc:mod_auth_openidc:*:*:*:*:*:*:*:*
cjose-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-0:0.6.1-2.module+el8+2454+f890a43a.src (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.ppc64le (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.s390x (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-debuginfo-0:0.6.1-2.module+el8+2454+f890a43a.x86_64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS
cjose-debugsource-0:0.6.1-2.module+el8+2454+f890a43a.aarch64 (mod_auth_openidc:2.3) as a component of Red Hat Enterprise Linux AppStream (v. 8)alle Versionenfixedredhat_csafUS

20 von 40 angezeigt

Advisories (2)

Hersteller- und Ökosystem-Meldungen dazu.

RHSA-2022:1823Red Hat Security Advisory: mod_auth_openidc:2.3 security update2022-05-10csaf · redhat_csafUS
An update for the mod_auth_openidc:2.3 module is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.
WID-SEC-W-2023-0580Red Hat Enterprise Linux (mod_auth_openidc): Mehrere SchwachstellenDeutsch2022-05-10csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux ausnutzen, um falsche Informationen darzustellen, vertrauliche Informationen offenzulegen und einen Cross-Site-Scripting Angriff durchzuführen.

auch bekannt als (2)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd cert_bund nvd redhat_csaf NVD CVE.org MITRE

veröffentlicht 2021-09-03geändert 2026-06-17

verwandt (2,012)

Verwandte Einträge.

ID	Schweregrad	EPSS	ausnutzbar	veröffentlicht
CVE-2021-38000US	medium6.1OT kritisch	4.95% (92nd)	KEV	2021-11-23
Insufficient validation of untrusted input in Intents in Google Chrome on Android prior to 95.0.4638.69 allowed a remote attacker to arbitrarily browser to a malicious URL via a cr…
CVE-2012-0518US	medium4.7OT kritisch	4.69% (92nd)	KEV	2012-10-16
Unspecified vulnerability in the Oracle Application Server Single Sign-On component in Oracle Fusion Middleware 10.1.4.3.0 allows remote attackers to affect integrity via unknown v…
CVE-2017-1000117US	high8.8	77.8% (100th)	Exploit	2017-10-05
A malicious third-party can give a crafted "ssh://..." URL to an unsuspecting victim, and an attempt to visit the URL can result in any program that exists on the victim's machine…
CVE-2025-4123US	medium6.1	97.1% (100th)	Exploit	2025-05-22
A cross-site scripting (XSS) vulnerability exists in Grafana caused by combining a client path traversal and open redirect. This allows attackers to redirect users to a website tha…
CVE-2018-11784US	medium4.3	97.7% (100th)	Exploit	2018-10-04
When the default servlet in Apache Tomcat versions 9.0.0.M1 to 9.0.11, 8.5.0 to 8.5.33 and 7.0.23 to 7.0.90 returned a redirect to a directory (e.g. redirecting to '/foo/' when the…

+2007 weitere

Referenzen (26)

Externe Belege — Patches, Meldungen, Analysen.

scry

Angreifer nutzen Schwachstellen wie diese gegen im Internet exponierte Dienste aus. Sehen Sie mit einem kostenlosen Passiv-Scan, was exponiert ist.

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