CVE-2020-1728

Severity: medium (CVSS 5.4 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: 2020-04-06 · updated 2026-06-17
Weakness: CWE-358

Description

A vulnerability was found in all versions of Keycloak where, the pages on the Admin Console area of the application are completely missing general HTTP security headers in HTTP-responses. This does not directly lead to a security issue, yet it might aid attackers in their efforts to exploit other problems. The flaws unnecessarily make the servers more prone to Clickjacking, channel downgrade attacks and other similar client-based attack vectors.

Affected products

quarkusio quarkus: through 1.4.2
Keycloak: before 10.0.0 — fixed in 10.0.0

How to fix

Upgrade to a fixed version: Keycloak 10.0.0. Check the vendor advisory for mitigations.

References

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