Vulnerability GO-2026-4981
Unknown
UNKNOWN RISK
Vulnerabilities without an assigned CVSS score. Severity is not determinable from available data.
6 months ago
May 07, 2026 at 07:21 PM UTC
Crash when handling long CNAME response in net
<1.25.10, >=1.26.0-0 <1.26.3
<1.25.10, >=1.26.0-0 <1.26.3
Summary
Crash when handling long CNAME response in net
Details
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
References
Related Vulnerabilities
Other vulnerabilities affecting the same packages
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Distrust compromised intermediate certificates in crypto/x509
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1 month ago
Reset context tracking on consecutive template expressions in html/template
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<1.26.9, >=1.27.0-0 <1.27.2 GO-2026-6599
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1 month ago
Recognize yield as regexp preceder keyword in html/template
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1 month ago
HTTP/2 server memory exhaustion due to Trailer headers in net/http
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Impacted packages
Timeline
Published
6 months ago
May 07, 2026 at 07:21 PM UTC
Last Modified
1 hour ago
November 13, 2026 at 07:12 PM UTC