CVE-2026-1035

LOW3.1EPSS 0.01%

Keycloak does not validate and update refresh token usage atomically

發布日:2026/1/21修改日:2026/4/2

描述

A flaw was found in the Keycloak server during refresh token processing, specifically in the TokenManager class responsible for enforcing refresh token reuse policies. When strict refresh token rotation is enabled, the validation and update of refresh token usage are not performed atomically. This allows concurrent refresh requests to bypass single-use enforcement and issue multiple access tokens from the same refresh token. As a result, Keycloak’s refresh token rotation hardening can be undermined.

受影響套件(1)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1LOW3.1CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N

參考連結(7)