CVE-2026-25704

A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in  cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic. This issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426.

A Privilege Dropping / Lowering Errors/Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability in  cosmic-greeter can allow an attacker to regain privileges that should have been dropped and abuse them in the racy checking logic. This issue affects cosmic-greeter before https://github.Com/pop-os/cosmic-greeter/pull/426.

Una vulnerabilidad de condición de carrera de errores de eliminación/reducción de privilegios/tiempo de verificación, tiempo de uso (TOCTOU) en cosmic-greeter puede permitir a un atacante recuperar privilegios que deberían haber sido eliminados y abusar de ellos en la lógica de verificación propensa a condiciones de carrera. Este problema afecta a cosmic-greeter antes de https://github.Com/pop-os/cosmic-greeter/pull/426.