HarborGuard / CVE
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HIGHCVE-2026-39836Published Modified CNA Go

CVE-2026-39836: Panic in Dial and LookupPort when handling NUL byte on Windows in net

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL (0).

Metrics

CVSS v3.1
7.5
Severity
HIGH
Fixed in
1.25.10
Affected Products
1

Fix available

1.25.101.26.3
Affected packages
  • Go standard library / net
    < 1.25.10 (from 0) · < 1.26.3 (from 1.26.0-0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H