Directory Traversal Affecting runfinch-finch package, versions <0:1.19.0-1.amzn2023.0.1


Severity

Recommended
high

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.31% (24th percentile)

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  • Snyk IDSNYK-AMZN2023-RUNFINCHFINCH-20250000
  • published29 Sept 2026
  • disclosed21 Jul 2026

Introduced: 21 Jul 2026

CVE-2026-15789  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2023 runfinch-finch to version 0:1.19.0-1.amzn2023.0.1 or higher.
This issue was patched in ALAS2023-2026-3140.

NVD Description

Note: Versions mentioned in the description apply only to the upstream runfinch-finch package and not the runfinch-finch package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2023 relevant fixed versions and status.

A custom client can produce such an upload request to the BuildKit daemon that files can escape from the BuildKit-controlled state directory. The client needs to have valid permissions to access the BuildKit control API to issue builds, e.g., bypass authentication, etc.

CVSS Base Scores

version 3.1