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Medium

BuildKit proxy CA cleanup can be disrupted by build steps

Type: advisorySource: Official CVE List1 source record

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.

Announced Source revision 1
Original source ↗

CVE-2026-93315

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-93315

BuildKit

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "vendor": "moby",
    "product": "BuildKit",
    "versions": [
      {
        "status": "affected",
        "version": "0.31.0",
        "lessThan": "0.33.1",
        "versionType": "semver"
      }
    ],
    "platforms": [
      "Linux"
    ],
    "packageName": "github.com/moby/buildkit",
    "defaultStatus": "unaffected"
  }
]
Related CVEs
CVE-2026-93315

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#9273 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement