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CVE Watch21 jul 2026

CVE-2026-44973

Billy is an interface filesystem abstraction for Go. Prior to 5.9.0, multiple path traversal issues exist across different components of go-

CVSS

8.1

Alto

EPSS

0.3%

p24

KEV

—

Exploit Today

7

0-100

Publicado: 28 may 2026 · Última mod.: 21 jul 2026 · CWE-22

EPSS · 30d

0.3%EPSS · 30 días0.3%

2026-08-132026-09-10

Descripción técnica

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.

Referencias oficiales

github.comhttps://github.com/go-git/go-billy/security/advisories/GHSA-qw64-3x98-g7q2

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