CVE-2026-32282
CVE-2026-32282 · TOCTOU permits root escape on Linux via Root.Chmod in os in internal/syscall/unix
This page contains facts from public vulnerability sources. Check the original advisory before updating.
This page shows selected source facts. See the linked advisories for the complete description and affected versions.
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.
CVSS 6.4 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: system
Affected products and versions
internal/syscall/unix
- Versions
- ≥ 0, < 1.25.9: Affected (semver)
- ≥ 1.26.0-0, < 1.26.2: Affected (semver)
Update to 1.25.9; Update to 1.26.2
golang-1.19 Debian:12
- Versions
- 1.19.10-1
- 1.19.10-2
- 1.19.11-1
- 1.19.12-1
- 1.19.12-2
- 1.19.12-2~bpo11+1
- 1.19.12-2~bpo12+1
- 1.19.13-1
- 1.19.13-1~bpo11+1
- 1.19.13-1~bpo12+1
- 1.19.8-2
- 1.19.9-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.24 Debian:13
- Versions
- 1.24.12-1
- 1.24.13-1
- 1.24.13-2
- 1.24.4-1
- 1.24.4-2
- 1.24.4-3
- 1.24.4-4
- 1.24.7-1
- 1.24.8-1
- 1.24.9-1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.26 Debian:14
- Versions
- 1.26.0-1
- 1.26.1-1
- 1.26~rc2-1
- 1.26~rc3-1
- 1.26~rc3-2
- Affected ranges
- ECOSYSTEM: < 1.26.2-1
Update to 1.26.2-1
golang-1.10 Ubuntu:14.04:LTS
- Versions
- 1.10.4-2ubuntu1~14.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.10 Ubuntu:16.04:LTS
- Versions
- 1.10.4-2ubuntu1~16.04.1
- 1.10.4-2ubuntu1~16.04.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.6 Ubuntu:16.04:LTS
- Versions
- 1.6-0ubuntu1
- 1.6-0ubuntu2
- 1.6-0ubuntu3
- 1.6-0ubuntu4
- 1.6-0ubuntu5
- 1.6.1-0ubuntu1
- 1.6.2-0ubuntu5~16.04
- 1.6.2-0ubuntu5~16.04.2
- 1.6.2-0ubuntu5~16.04.3
- 1.6.2-0ubuntu5~16.04.4
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.13 Ubuntu:Pro:16.04:LTS
- Versions
- 1.13.8-1ubuntu1~16.04.2
- 1.13.8-1ubuntu1~16.04.3
- 1.13.8-1ubuntu1~16.04.3+esm2
- 1.13.8-1ubuntu1~16.04.3+esm3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.18 Ubuntu:Pro:16.04:LTS
- Versions
- 1.18.1-1ubuntu1~16.04.6
- 1.18.1-1ubuntu1~16.04.6+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.10 Ubuntu:18.04:LTS
- Versions
- 1.10~rc1-1
- 1.10~rc1-1ubuntu1
- 1.10~rc1-2ubuntu1
- 1.10~rc2-1ubuntu1
- 1.10-1ubuntu1
- 1.10.1-1ubuntu2
- 1.10.4-2ubuntu1~18.04.1
- 1.10.4-2ubuntu1~18.04.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.13 Ubuntu:Pro:18.04:LTS
- Versions
- 1.13.8-1ubuntu1~18.04.2
- 1.13.8-1ubuntu1~18.04.3
- 1.13.8-1ubuntu1~18.04.4
- 1.13.8-1ubuntu1~18.04.4+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.16 Ubuntu:Pro:18.04:LTS
- Versions
- 1.16.2-0ubuntu1~18.04.2
- 1.16.2-0ubuntu1~18.04.2+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.18 Ubuntu:Pro:18.04:LTS
- Versions
- 1.18.1-1ubuntu1~18.04.3
- 1.18.1-1ubuntu1~18.04.4
- 1.18.1-1ubuntu1~18.04.4+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.8 Ubuntu:18.04:LTS
- Versions
- 1.8.3-2ubuntu1
- 1.8.3-2ubuntu1.18.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.9 Ubuntu:18.04:LTS
- Versions
- 1.9.1-2ubuntu1
- 1.9.2-1ubuntu1
- 1.9.2-3ubuntu1
- 1.9.3-1ubuntu1
- 1.9.4-1ubuntu1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.13 Ubuntu:20.04:LTS
- Versions
- 1.13.1-1ubuntu1
- 1.13.3-1ubuntu1
- 1.13.4-1ubuntu1
- 1.13.5-1ubuntu1
- 1.13.6-1ubuntu1
- 1.13.6-2ubuntu1
- 1.13.7-1ubuntu1
- 1.13.8-1ubuntu1
- 1.13.8-1ubuntu1.1
- 1.13.8-1ubuntu1.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.14 Ubuntu:20.04:LTS
- Versions
- 1.14~beta1-1
- 1.14~beta1-2
- 1.14~rc1-1
- 1.14-1
- 1.14.1-1
- 1.14.2-1
- 1.14.2-1ubuntu1
- 1.14.3-2ubuntu2~20.04.1
- 1.14.3-2ubuntu2~20.04.2
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.16 Ubuntu:Pro:20.04:LTS
- Versions
- 1.16.2-0ubuntu1~20.04
- 1.16.2-0ubuntu1~20.04.1
- 1.16.2-0ubuntu1~20.04.1+esm1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.18 Ubuntu:20.04:LTS
- Versions
- 1.18.1-1ubuntu1~20.04.1
- 1.18.1-1ubuntu1~20.04.2
- 1.18.1-1ubuntu1~20.04.3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.20 Ubuntu:20.04:LTS
- Versions
- 1.20.3-1ubuntu0.1~20.04
- 1.20.3-1ubuntu0.1~20.04.1
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.21 Ubuntu:20.04:LTS
- Versions
- 1.21.1-1~ubuntu20.04.1
- 1.21.1-1~ubuntu20.04.2
- 1.21.1-1~ubuntu20.04.3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.22 Ubuntu:20.04:LTS
- Versions
- 1.22.2-2~20.04.1
- 1.22.2-2~20.04.2
- 1.22.2-2~20.04.3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.17 Ubuntu:22.04:LTS
- Versions
- 1.17-1ubuntu2
- 1.17.3-1ubuntu1
- 1.17.3-1ubuntu2
- 1.17.13-3ubuntu1
- 1.17.13-3ubuntu1.2
- 1.17.13-3ubuntu1.3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published
golang-1.18 Ubuntu:22.04:LTS
- Versions
- 1.18~beta1-0ubuntu1
- 1.18~beta2-1ubuntu1
- 1.18~beta2-1ubuntu2
- 1.18~rc1-1ubuntu1
- 1.18-1ubuntu1
- 1.18.1-1ubuntu1
- 1.18.1-1ubuntu1.1
- 1.18.1-1ubuntu1.2
- 1.18.1-1ubuntu1.3
- Affected ranges
- ECOSYSTEM: (−∞, +∞)
No fix published