Signal is active with 1 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
On Unix systems, opening a file in an os.Root improperly follows symlinks to locations outside of the Root when the final path component of the a path is a symbolic link and the path ends in /. For example, 'root.Open("symlink/")' will open "symlink" even when "symlink" is a symbolic link pointing outside of the root.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
| Date | Total | Labels |
|---|
| 2026-07-09 | 1 | Patch1 |
| 2026-07-13 | 1 | Disclosure1 |
Go 1.26.5, 1.25.12 fix 2 CVEs https://www.openwall.com/lists/oss-security/2026/07/08/10 CVE-2026-39822: os: Root escape via symlink plus trailing slash CVE-2026-42505: crypto/tls: Encrypted Client Hello privacy leak
Post summary
This notice announces that Go 1.26.5 and 1.25.12 contain patches for CVE‑2026‑39822 and CVE‑2026‑42505, encouraging users to update to the fixed versions.
🚨 HIGH: CVE-2026-39822 (CVSS 7.8) Unix systems: os[.]Root improperly follows symlinks outside Root when path ends in /. Allows local privilege escalation. Affected: Go os[.]Root implementations CWE-61: Path Traversal #CVE #Vulnerability #PatchNow https://t.co/brQ0NjYYVj
Post summary
CVE-2026-39822 reveals a path‑traversal flaw in Go's os.Root that allows local privilege escalation on Unix systems; the announcement cites a CVSS 7.8 rating and affected implementations.
2 of 2 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | golang | go | - | - | - |
| App | golang | go | 1.27 | - | - |