CVE-2026-44517: Buildah: Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive
containers · buildah
Affected: containers buildah · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 8% of scored CVEs
DescriptionCVE.org
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.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- containers · buildah>= 1.38.1, < 1.43.2
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- containers
- Published
- August 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-44517 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.
References
- NVD entrynvd.nist.gov
- CVE recordcve.org
- Weakness CWE-22cwe.mitre.org
- github.com/podman-container-tools/buildah/security/advisories/GHgithub.com
- github.com/podman-container-tools/buildah/commit/54459cf8a0feb4bgithub.com
- github.com/podman-container-tools/buildah/commit/fc2003bb2efeb3egithub.com
- github.com/podman-container-tools/buildah/releases/tag/v1.43.2github.com
- github.com/podman-container-tools/buildah/releases/tag/v1.44.0github.com