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CVE-2026-33811Published

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

Exact source revision recorded 25 Oct 2026 08:17:24 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

nvd · CVE-2026-33811

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-415 · CWE-1341

Original publisher date fields

published: 2026-05-07T20:16:42.770

lastModified: 2026-09-18T13:17:57.510

1 source CPE criteria · context only
  • cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

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