VULNERABILITY INTELLIGENCE
CVE-2026-39817
CVSS score5.9 MEDIUM
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-05-07
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:N
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.
Weakness classification
- nvd@nist.gov: CWE-787
Primary references
- security@golang.org — Patch
- security@golang.org — Issue Tracking
- security@golang.org — Issue Tracking, Mailing List
- security@golang.org — Vendor Advisory