CVE-2026-2092
Duplicate Advisory: Keycloak: Unauthorized access via improper validation of encrypted SAML assertions
Description
### Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-794g-x443-36f7. This link is maintained to preserve external references. ### Original Description A flaw was found in Keycloak. Keycloak's Security Assertion Markup Language (SAML) broker endpoint does not properly validate encrypted assertions when the overall SAML response is not signed. An attacker with a valid signed SAML assertion can exploit this by crafting a malicious SAML response. This allows the attacker to inject an encrypted assertion for an arbitrary principal, leading to unauthorized access and potential information disclosure.
How to fix CVE-2026-2092
To remediate CVE-2026-2092, upgrade the affected package to a fixed version below.
- —upgrade to 26.2.14 or later
- —upgrade to 26.4.10 or later
- —no fix listed
- —upgrade to 26.5.5 or later
Is CVE-2026-2092 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 26.2.14
- >= 26.3.0, < 26.4.10
- from 0, <= 26.2.5
- >= 26.5.0, < 26.5.5
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.7 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:L |