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CVE-2020-14366 keycloak

Affected softwarekeycloak
Severity7.5 High CVSS 3.1 3 scores
Fixed in12.0.0
WeaknessPath traversal (CWE-22)
Published9 Nov 2020
Updated17 Jun 2026

Description

A vulnerability was found in keycloak, where path traversal using URL-encoded path segments in the request is possible because the resources endpoint applies a transformation of the url path to the file path. Only few specific folder hierarchies can be exposed by this flaw

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 6 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC none indexed
  • EPSS 1.4% chance in 30 days

Waratek protection

Protected by Waratek

Waratek has a rule that blocks attacks on this vulnerability.

Decided by A vulnerability class already blocked by an ARMR security rule
Finding Protected by Waratek's ARMR path-traversal security rule, which blocks this class of attack at the JVM level without a rule written for this CVE specifically. The CVE's weakness is CWE-22: Path Traversal.

How to mitigate CVE-2020-14366

Upgrade keycloak to 12.0.0 or later. Until you can, Waratek RASP blocks exploitation with its path traversal rule. It runs inside the Java application, with no code changes.

Waratek RASP Runtime protection for Java applications

CVSS

7.5 HIGH v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 7.5 HIGH CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N NVD Primary published
CVSS 3.1 6.8 MEDIUM CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:N/A:N secalert@redhat.com Secondary
CVSS 2.0 5.0 none AV:N/AC:L/Au:N/C:P/I:N/A:N NVD Primary

Affected software and releases

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.keycloak:keycloak-parent 0 12.0.0 unbounded

Products and versions

2 products, 2 version entries
SourceVendorProductSchemeAffected versions
osv org.keycloak keycloak-parent generic < 12.0.0
nvd redhat keycloak generic < 12.0.0

References

URLTags
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2020-14366 WEB

Timeline

Published2020-11-09By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.