Feed/CVE-2026-9802
CVE-2026-9802MEDIUMCVSS 6.8

Keycloak has Insufficient Session Expiration

Published May 28, 2026·Updated Jul 1, 2026

NVD Description

A flaw was found in Keycloak. When revokeRefreshToken=true is enabled and persistent session storage is in use, a server restart can reset internal timing mechanisms. This allows a remote attacker, who has previously captured a user's refresh token, to replay that token even after it has been revoked. Successful exploitation grants the attacker unauthorized access to the victim's account, potentially leading to information disclosure or privilege escalation.

Affected Packages (1)

org.keycloak:keycloak-servicesMAVEN
Fixed in = 26.4.7

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N

References

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