What’s Vulnerable › Vulnerabilities

CVE-2020-10776

• Severity: medium (CVSS 4.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2020-11-17 · updated 2026-06-17
• Weakness: CWE-79

Description

A flaw was found in Keycloak before version 12.0.0, where it is possible to add unsafe schemes for the redirect_uri parameter. This flaw allows an attacker to perform a Cross-site scripting attack.

Affected products

• Keycloak: before 12.0.0 — fixed in 12.0.0

How to fix

Upgrade to a fixed version: Keycloak 12.0.0. Check the vendor advisory for mitigations.

References

• https://bugzilla.redhat.com/show_bug.cgi?id=1847428
• https://bugzilla.redhat.com/show_bug.cgi?id=1847428

Get alerted when CVE-2020-10776 or the next vulnerability affects your stack