CVE-2026-85747
Distribution: Client `manifests.Get()` does not verify returned content against requested digest
- State
- Published
- Severity
- 6.8 Medium
- Published
- Oct 13, 2026
- Updated
- Oct 18, 2026
- Reserved
- Sep 4, 2026
Description
Distribution is a toolkit to pack, ship, store, and deliver container content. Prior to 3.1.2, registry/client.(*manifests).Get() reads a manifest returned for a digest-pinned request and passes it to distribution.UnmarshalManifest without hashing the body against the requested digest, allowing a malicious or intercepted registry response to substitute attacker-chosen manifest content even when Docker-Content-Digest claims the requested value. The bundled pull-through proxy in registry/proxy/proxymanifeststore.go can cache and re-serve the substituted manifest. This issue is fixed in version 3.1.2.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 6.8 Medium | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N | GitHub_M |
Weaknesses
- CWE-354 Improper Validation of Integrity Check Value
Affected Products
| Product | Versions |
|---|---|
distributiondistribution |
|
References
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