Buildah is a tool that facilitates building OCI images. From 1.38.1 until 1.43.2 and 1.44.0, TempDirForURL in define/types.go does not securely confine Git repository subdirectories to the downloaded build context, and downloadToDirectory and stdinToDirectory can follow a Dockerfile symlink left by a partially extracted tar archive. A malicious server supplying a Git repository or tar archive can cause files outside the build context directory to be included in the context or copied into the build. This issue is fixed in versions 1.43.2 and 1.44.0.

No CVSS v4.0

Attack Vector Local

Attack Complexity Low

Privileges Required None

Scope Changed

Confidentiality Impact High

Integrity Impact None

Availability Impact None

User Interaction Required

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
containers buildah affected
Version Status Constraints
>= 1.38.1, < 1.43.2 affected —

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Project Subscriptions

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-49p4-px3h-rq49 Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive
Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/podman-container-tools/buildah/commit/54459cf8a0feb4b1da766e4a6360451834e1846c cve-icon
https://github.com/podman-container-tools/buildah/commit/fc2003bb2efeb3ed7d5c7e1e88d04e78f370a944 cve-icon
https://github.com/podman-container-tools/buildah/releases/tag/v1.43.2 cve-icon
https://github.com/podman-container-tools/buildah/releases/tag/v1.44.0 cve-icon
https://github.com/podman-container-tools/buildah/security/advisories/GHSA-49p4-px3h-rq49 cve-icon
History

Fri, 21 Aug 2026 20:45:00 +0000

Type Values Removed Values Added
Description Buildah is a tool that facilitates building OCI images. From 1.38.1 until 1.43.2 and 1.44.0, TempDirForURL in define/types.go does not securely confine Git repository subdirectories to the downloaded build context, and downloadToDirectory and stdinToDirectory can follow a Dockerfile symlink left by a partially extracted tar archive. A malicious server supplying a Git repository or tar archive can cause files outside the build context directory to be included in the context or copied into the build. This issue is fixed in versions 1.43.2 and 1.44.0.
Title Buildah: Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-08-21T20:29:00.354Z

Reserved: 2026-05-06T18:28:20.888Z

Link: CVE-2026-44517

cve-icon Vulnrichment

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cve-icon NVD

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cve-icon Redhat

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cve-icon OpenCVE Enrichment

No data.

Weaknesses