GHSA-49P4-PX3H-RQ49

Vulnerability from github – Published: 2026-06-22 20:15 – Updated: 2026-06-22 20:15
VLAI
Summary
Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive
Details

Impact

When processing a build contexts or add/copy instructions, a malicious server serving a Git repository or a tar archive file can cause files outside of the build context directory to be included in the build context or copied into the build.

Patches

Fixed in Buildah 1.44 and 1.43.2.

Severity
6.3 (Medium)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/containers/buildah"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.38.1"
            },
            {
              "fixed": "1.43.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-44517"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-22"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-22T20:15:48Z",
    "nvd_published_at": null,
    "severity": "MODERATE"
  },
  "details": "### Impact\n\nWhen processing a build contexts or `add`/`copy` instructions, a malicious server serving a Git repository or a tar archive file can cause files outside of the build context directory to be included in the build context or copied into the build.\n\n### Patches\n\nFixed in Buildah 1.44 and 1.43.2.",
  "id": "GHSA-49p4-px3h-rq49",
  "modified": "2026-06-22T20:15:48Z",
  "published": "2026-06-22T20:15:48Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/containers/buildah/security/advisories/GHSA-49p4-px3h-rq49"
    },
    {
      "type": "WEB",
      "url": "https://github.com/podman-container-tools/buildah/security/advisories/GHSA-49p4-px3h-rq49"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/podman-container-tools/buildah"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive"
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.