🛡️ CVE-2026-39817
🟡 CVSS 5.9 — Medium ✅ No Known Exploit CWE-787 NVD
5.9
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

The "go tool pack" subcommand (usually used only by the compiler as an internal tool with known-good inputs) does not sanitize output filenames. Extracting a malicious archive file with the "pack" subcommand can write files to arbitrary locations on the filesystem.

Details

Severity MEDIUM
CVSS Score 5.9
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
CWE CWE-787
Public Exploit ✅ No
Source NVD
Published 2026-05-07
Updated 2026-06-02
Modified 2026-05-13

Affected Packages

Software From version Fixed in
go 1.26.0 1.26.3
golang
toolchain
unknown

Exploit Protection

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