CVE-2026-93317

Container blob cache can accept unverified content

MEDIUM
5.9
CVSS Score
Published: October 5, 2026 at 05:43 PM UTC
Updated: October 6, 2026 at 03:08 PM UTC
1 product affected across 1 vendorBuildKit

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Severity
MEDIUM5.9
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

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 cached under that digest and reused by a later victim build, compromising build-input integrity.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

0.28.0 ≤ v < 0.33.10.28.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

5.9MEDIUMDocker
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-354

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