WID-SEC-W-2026-3741

csafDEcert_bund

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BuildKit: Mehrere Schwachstellen

Advisory ansehen veröffentlicht 2026-10-05

Ein Angreifer kann mehrere Schwachstellen in BuildKit ausnutzen, um beliebigen Programmcode auszuführen, Sicherheitsmaßnahmen zu umgehen, Daten zu manipulieren oder offenzulegen sowie einen Denial-of-Service-Zustand auszulösen.

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beschreibt (10)

Zugehörige CVEs.

IDSchweregrad ausnutzbar
CVE-2026-93321US——
A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.
CVE-2026-93315US——
When proxy networking with CA injection is enabled, a build can modify its CA bundle before cleanup. This may cause cleanup to block, operate outside the build rootfs, or fail with…
CVE-2026-93326US——
A build step for a Git source, crafted in a specific way, can bypass some policy validation rules. A malicious build definition can make the repository look like it is coming from…
CVE-2026-93323US——
The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make b…
CVE-2026-93322US——
A malicious frontend can submit an LLB definition that causes buildkitd to panic and terminate, interrupting all builds running on that daemon.
CVE-2026-93320US——
BuildKit may be tricked into performing file actions with special file inodes where regular files are expected. Special files may block operations or, on rootful workers, allow uni…
CVE-2026-93319US——
A malicious external BuildKit frontend can send requests using the internal API that can create conditions for a data race that can cause the BuildKit daemon to panic.
CVE-2026-93318US——
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 cach…
CVE-2026-93317US——
An unauthenticated attacker controlling a registry or OCI-layout blob source could provide blob contents that did not match the claimed digest. The resulting snapshot could be cach…
CVE-2026-93316US——
If BuildKit daemon is started with --cdi-disabled it can lead to daemon panic when builds try to use CDI devices. This can happen maliciously or by accident.
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Referenzen

Externe Belege — Patches, Meldungen, Analysen.

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