Directory Traversal Affecting rancher-fleet package, versions <0.15.1-r3


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.31% (23rd percentile)

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  • Snyk IDSNYK-CHAINGUARDLATEST-RANCHERFLEET-16728030
  • published17 May 2026
  • disclosed28 May 2026

Introduced: 17 May 2026

CVE-2026-44973  (opens in a new tab)
CWE-22  (opens in a new tab)

How to fix?

Upgrade Chainguard rancher-fleet to version 0.15.1-r3 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rancher-fleet package and not the rancher-fleet package as distributed by Chainguard. See How to fix? for Chainguard relevant fixed versions and status.

Billy is an interface filesystem abstraction for Go. Prior to 5.9.0, multiple path traversal issues exist across different components of go-billy. Insufficient path sanitization and boundary enforcement may allow crafted paths (e.g., using ..) to escape intended base directories. While go-billy was not originally designed to provide a strong security boundary, some of these issues were inconsistent across some of the built-in implementations. This results in scenarios where applications relying on go-billy for some level of isolation may inadvertently expose access to unintended filesystem locations. This vulnerability is fixed in 5.9.0.