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CVE-2026-33811

7.5 high SSVC exploitation: none Modified
NVD · CVE.org

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.

Fix

Patch, vendor advisory and mitigation references on NVD 2

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 1

  1. First seenCVSS 7.5 · golangNVD modified 2026-10-26 00:10

Affected (CPE criteria) 1

  • cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

References 132