CVE-2026-93318

CVE-2026-93318 · Cache poisoning via unvalidated image layer DiffIDs

Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.

A malicious image can advertise DiffIDs from another image while containing different layer contents. In affected versions, BuildKit could use the advertised DiffIDs to derive cache and snapshot identity without validating that they matched the actual layer contents. If a BuildKit daemon with shared or persistent cache first processes such a malicious image, a later build using the victim image may mount the attacker-controlled layer contents as the base image. This can allow code from the malicious image to run in the victim build, for example by replacing a commonly executed path such as /bin/sh. The attacker-controlled code may read build secrets mounted into the build, access other build resources, alter output artifacts, or hang the build. The issue affects both regular snapshotters and lazy-pulling snapshotters such as stargz.

CVSS 7.5 · Alta · EPSS 0,2% · Corrección disponible

Publicación

2026-10-05T17:45:39.491Z

Actualización

2026-10-05T19:06:41.297Z

Pila tecnológica: system

Comprueba tu servidor →