GO-2026-4979
Invoking "go tool pack" does not sanitize output paths in cmd/go
At a glance
- Published
- Updated
- CVE
- CVE-2026-39817
- Aliases
- BIT-golang-2026-39817
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.
Affected packages
| Package | Versions |
|---|---|
| Go · toolchain | introduced 0, fixed 1.25.10, introduced 1.26.0-0, fixed 1.26.3 |
References
- https://go.dev/issue/78778 REPORT
- https://go.dev/cl/767520 FIX
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — Go Vulnerability Database |