## Distribution: Client `manifests.Get()` does not verify returned content against requested digest

- 種別: advisory
- 重大度: medium
- 関連技術: go, github, docker
- CVE: CVE-2026-85747
- 公開日時: 2026-10-15T20:22:02.000Z
- 情報源: GitHub Advisory Database (https://github.com/advisories/GHSA-685w-q87j-wqw3)
- パーマリンク: https://vulnpulse.app/items/ghsa-ghsa-685w-q87j-wqw3

影響: go:github.com/docker/distribution <= 2.8.3, go:github.com/distribution/distribution/v3 < 3.1.2 → 3.1.2
Summary registry/client.(manifests).Get(ctx, dgst, …) fetches a manifest by digest but never hashes the returned body and compares it against the requested digest. A malicious or compromised registry, or any MITM on the registry connection, can serve arbitrary manifest bytes in response to a digest-pinned request and the client returns the substituted content transparently to the caller. Any application relying on digest pinning for supply-chain integrity — image policy controllers, mirrors, pu…