Vulnerability in Golang Go
CVE-2026-32282
On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root. The Linux fchmodat syscall silently ignores the AT_SYMLINK_NOFOLLOW flag, which Root.Chmod uses to avoid symlink traversal. Root.Chmod checks its target before acting and returns an error if the target is a symlink lying outside the root, so the impact is limited to cases where the target is replaced with a symlink between the check and operation.
EPSS: 0.003 (21.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.4 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Golang Go
- Go Standard Library Internal/syscall/unix — versions 0, 1.26.0-0
Weakness classification (CWE)
References
- security@golang.org (Patch)
- security@golang.org (Issue Tracking)
- security@golang.org (Mailing List, Release Notes)
- security@golang.org (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-32282?
- CVE-2026-32282 is a medium-severity vulnerability in Golang Go, classified under Improper Link Resolution Before File Access. CVSS score: 6.4/10. Published 2026-04-08.
- How severe is CVE-2026-32282?
- Medium severity. CVSS v3 base score is 6.4 out of 10.