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Medium

Security advisory

Type: advisorySources: OSVCVE: CVE-2026-64777

A malicious builder peer may be able to request an in-context file by name from the host and receive the contents of whatever the name resolves to, even when it resolves outside the build context. This vulnerability is addressed in container version 1.2.0.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2026-64777
Confirmed fixed CVEs
Not specified
Updated in this feed
1 Nov 2026, 08:44 UTC · Revision 1

Source evidence

CVE-2026-64777

core-osv · Original source

Published 20 Aug 2026, 19:16 UTC

A malicious builder peer may be able to request an in-context file by name from the host and receive the contents of whatever the name resolves to, even when it resolves outside the build context. This vulnerability is addressed in container version 1.2.0.

osv:CVE-2026-64777
Complete source record
{
  "id": "a591035618ef352edee0b040b8b409774150f2d6337fc4d3b41b76d82c66b50e",
  "url": "https://osv.dev/vulnerability/CVE-2026-64777",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2026-64777",
    "summary": "A malicious builder peer may be able to request an in-context file by name from the host and receive the contents of whatever the name resolves to, even when it resolves outside the build context. This vulnerability is addressed in container version 1.2.0.",
    "evidence": "osv:CVE-2026-64777",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-64777",
      "aliases": [
        "CVE-2026-64777",
        "GHSA-2v2q-4q35-h585"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/apple/container",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "6e65319fe476ffe8db8ddaf828a537ed36fe2859"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:apple:container:*:*:*:*:*:swift:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "1.2.0"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "1.1.0",
            "1.0.0",
            "0.12.3",
            "0.12.2",
            "0.12.1",
            "0.12.0",
            "0.11.0",
            "0.10.0",
            "0.9.0",
            "0.8.0",
            "0.7.1",
            "0.7.0",
            "0.6.0",
            "0.5.0",
            "0.4.1",
            "0.4.0",
            "0.3.0",
            "0.2.0",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-64777.json"
          }
        }
      ],
      "modified": "2026-10-24T10:49:58.317224085Z",
      "provider": "osv",
      "references": [
        "https://github.com/apple/container/security/advisories/GHSA-2v2q-4q35-h585"
      ],
      "provider_metadata": {
        "unresolved_ranges": [
          {
            "cpes": [
              "cpe:2.3:a:apple:container:*:*:*:*:*:swift:*:*"
            ],
            "vendor_product": "apple:container",
            "extracted_events": [
              {
                "range": [
                  {
                    "fixed": "1.2.0"
                  }
                ],
                "source": "CPE_RANGE"
              }
            ]
          }
        ]
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-64777",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 441893,
  "published_at": "2026-08-20T19:16:57.733+00:00"
}