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Security Advisories

CVE-2026-44973

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-44973

Severity

8.1

High

CVSS V3

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Summary

Billy: Path traversal vulnerabilities

Description

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.

References

  • https://nvd.nist.gov/vuln/detail/CVE-2026-44973

Affected packages


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