6.1

CVE-2022-23527: debian debian_linux Open Redirect

CVSS: 6.1v3.1MediumModified
AliasesUBUNTU-CVE-2022-23527DEBIAN-CVE-2022-23527openSUSE-SU-2024:12584-1
Published 14-12-2022Last modified 18-04-2025
Open JSON

Vulnerability summary

CVE-2022-23527 is a medium (CVSS 6.1) Open Redirect vulnerability in debian debian_linux. EPSS estimates a 0.94% chance of exploitation in the next 30 days, higher than 60.3% of scored vulnerabilities.

Overall risk
25/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (NVD)
EPSS score
0.94%
0%100%
Low · +0.04 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 3
DLA-3499-1RHSA-2023:6365RHSA-2023:6940SUSE-SU-2023:0215-1SUSE-SU-2023:1837-1SUSE-SU-2025:4532-1

Timeline

  1. 14-12-2022
    PublishedVulnerability first disclosed.
  2. 18-04-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.94%

Chance of exploitation in the next 30 days

Percentile

60%

Versus all other CVEs

30-day change

+0.04 pp

From 0.90% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.94%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian2 products
Openidc1 product
Opensuse1 product
  • apache2-mod_auth_openidc&distro=openSUSE Tumbleweed< 2.4.12.2-1.1
Ubuntu1 product
  • libapache2-mod-auth-openidcAll versions (No fix recorded)
Zmartzone1 product

5 vendors · 6 products

References

9 links