Is CVE-2026-84653 being exploited?

No public exploit is currently tracked.

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CVE-2026-84653

Description

Jenkins 2.421 through 2.579 (both inclusive), LTS 2.426.1 through 2.568.2 (both inclusive) does not correctly perform permission checks in the Appearance configuration page, allowing attackers with Overall/Manage permission to modify Appearance configuration options they should not have access to.