CVE-2026-39819
MEDIUM severity · CVSS 5.3 · CWE-59
5.3CVSS MEDIUM
Summary
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.
Impact & exploitability
Attack vectorLocal
Attack complexityHigh
Privileges requiredLow
User interactionNone
Confidentiality impactLow
Integrity impactHigh
Availability impactNone
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://go.dev/cl/763882 ↗