HIGHVulnerability
Verified
Global

NVD HIGH: CVE-2026-33811 — When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can...

·Source: NIST NVD

Updated:

Executive Summary

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

Analysis

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. CVSS Score: 7.5. Published: 2026-05-07T20:16:42.770.

Indicators of Compromise (1)

CVE (1)
CVE-2026-33811
NVDMITRE CVE
Source Attribution

Originally published by NIST NVD on May 7, 2026. Verified by: NIST.

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