Skip to content
CVE PROGRAM SOURCE RECORD5.3 Medium

CVE-2026-39819

Invoking "go bug" follows symlinks in predictable temporary filenames in cmd/go

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Go

Description

The "go bug" command writes to two files with predictable names in the system temporary directory (for example, "/tmp"). An attacker with access to the temporary directory can create a symlink in one of these names, causing "go bug" to overwrite the target of the symlink.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go toolchain cmd/go

Default version status: unaffected

  • 0 to < 1.25.10affected
  • 1.26.0-0 to < 1.26.3affected

References