CVE-2026-44517
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.
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 6.3 MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N
- EPSS
- 0.18% probability · 8th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Source
- security-advisories@github.com
References
- https://github.com/podman-container-tools/buildah/commit/54459cf8a0feb4b1da766e4a6360451834e1846c
- https://github.com/podman-container-tools/buildah/commit/fc2003bb2efeb3ed7d5c7e1e88d04e78f370a944
- https://github.com/podman-container-tools/buildah/releases/tag/v1.43.2
- https://github.com/podman-container-tools/buildah/releases/tag/v1.44.0
- https://github.com/podman-container-tools/buildah/security/advisories/GHSA-49p4-px3h-rq49
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.