CVE-2026-39819

medium

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.

References

https://pkg.go.dev/vuln/GO-2026-4978

https://groups.google.com/g/golang-announce/c/qcCIEXso47M

https://go.dev/issue/78584

https://go.dev/cl/763882

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28422

Details

Source: Mitre, NVD

Published: 2026-05-07

Updated: 2026-05-13

Named Vulnerability: GO-2026-4978Named Vulnerability: GHSA-5m4p-2gjx-p2g8

Risk Information

CVSS v2

Base Score: 4.5

Vector: CVSS2#AV:L/AC:H/Au:S/C:P/I:C/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:N

Severity: Medium

EPSS

EPSS: 0.00179