CVE-2026-93315

BuildKit proxy CA cleanup can be disrupted by build steps

MEDIUM
5.8
CVSS Score
Published: October 5, 2026 at 09:57 PM UTC
Updated: October 6, 2026 at 03:08 PM UTC
1 product affected across 1 vendorBuildKit

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Severity
MEDIUM5.8
Exploit prediction
EPSS 0.1%
SSVC
No known exploit

Description

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 without failing the build.

Affected

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

0.31.0 ≤ v < 0.33.10.31.0

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

5.8MEDIUMDocker
Vector?

Quick Info

StatusAWAITING ANALYSIS
CWE
CWE-367

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