CVE-2026-44517

mediumpriority · track · 0EPSS 0.002 · 8 %ileUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.18% (8th) EPSS
CVSS 6.3 · medium
Is it mine?
2 products
Check your exposure
Who says so?
1 sources
osv

EPSS · scored 2026-10-28

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

6.3
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.16.3mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:Nsecondary · security-advisories@github.comexploitability 1.8 · impact 4
v3.16.3mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:Nsecondary · OSV
v3.15.8mediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-22USCWE-22US
04

affected products (2)

Products and version ranges known to be affected.

05

advisories (2)

Vendor and ecosystem advisories describing this.

  • GHSA-49p4-px3h-rq49Build breakout using malicious Containerfile and Git Smart HTTP server or GitHub release tar archive2026-06-22ghsa · osvUS

    ### 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.

  • GO-2026-5116Build breakout using malicious Containerfile or Git HTTP server in github.com/containers/buildah2026-07-27vendor · osvUS

    Buildah allows a build-time breakout when using a malicious Containerfile or a malicious Git HTTP server. A crafted Git URL or Containerfile can cause Buildah to access files outside of the build context during an ADD or COPY operation.

06

also known as (2)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

osvNVDCVE.orgMITRE
published 2026-08-21modified 2026-08-25
08

references (5) nvd

External citations — patches, advisories, analysis.

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