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CVE-2026-93323 affecting package docker-buildx 0.14.0-17

Type: advisorySources: OSV

The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.

Products
docker-buildx
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-93323
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 14:05 UTC · Revision 1

Source evidence

CVE-2026-93323 affecting package docker-buildx 0.14.0-17

core-osv · Original source

Published 5 Oct 2026, 18:17 UTC

The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.

osv:AZL-106746

docker-buildx

Fixed versions: Not specified

Complete source record
{
  "id": "d4538e4485395afc69d47b4a6084bc5c4b52b2d0fa611e5d6d69167de6a8895d",
  "url": "https://osv.dev/vulnerability/AZL-106746",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-93323 affecting package docker-buildx 0.14.0-17",
    "summary": "The Dockerfile frontend loaded the Dockerfile and .dockerignore files of a build context into memory without a size limit. A build context containing an oversized file could make buildkitd allocate memory proportional to that file, potentially exhausting memory and terminating the daemon, which interrupts other builds on the same instance. Fixed by rejecting such files above 16 MiB.",
    "evidence": "osv:AZL-106746",
    "products": [
      {
        "name": {
          "value": "docker-buildx",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "AZL-106746",
      "aliases": [
        "AZL-106746"
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "0.14.0-17"
                }
              ]
            }
          ],
          "package": {
            "name": "docker-buildx",
            "purl": "pkg:rpm/azure-linux/docker-buildx",
            "ecosystem": "Azure Linux:3"
          },
          "database_specific": {
            "source": "https://github.com/microsoft/AzureLinuxVulnerabilityData/blob/main/osv/AZL-106746.json"
          }
        }
      ],
      "modified": "2026-10-15T05:37:09Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-93323"
      ],
      "references": [
        "https://nvd.nist.gov/vuln/detail/CVE-2026-93323"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-93323",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 321448,
  "published_at": "2026-10-05T18:17:39+00:00"
}