Home/CVE/keycloak: path traversal via double URL encoding. A flaw was found in Keycloak, where it does not properly validate URLs
CVE

CVE-2022-3782

keycloak: path traversal via double URL encoding. A flaw was found in Keycloak, where it does not properly validate URLs

keycloak: path traversal via double URL encoding. A flaw was found in Keycloak, where it does not properly validate URLs included in a redirect. An attacker can use this flaw to construct a malicious request to bypass validation and access other URLs and potentially sensitive information within the domain or possibly conduct further attacks.

This flaw affects any client that utilizes a wildcard in the Valid Redirect URIs field.

CRITICAL · CVSS 9.1 EPSS 0.00169
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Affected Products & Versions

1
redhat keycloakall versions

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.keycloak:keycloak-parent CRITICAL fixed in 20.0.2

Scoring & Timeline

9.1
CRITICAL · CVSS v3.1 · secalert@redhat.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD13 Jan 2023 · 06:15 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
total
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

17
rhsaRHSA-2023:3809Moderate
rhsaRHSA-2023:3815Moderate
rhsaRHSA-2023:3185Important
rhsaRHSA-2023:2135Important
rhsaRHSA-2023:1049Moderate
🔗

References & Sources

1
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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