CVE-2026-33811
ADVISORY - golangSummary
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
Common Weakness Enumeration (CWE)
GoLang
CREATED
UPDATED
ADVISORY IDGO-2026-4981
EXPLOITABILITY SCORE
-
EXPLOITS FOUND
-
COMMON WEAKNESS ENUMERATION (CWE)-
| Package | Type | OS Name | OS Version | Affected Ranges | Fix Versions |
|---|---|---|---|---|---|
| stdlib | golang | - | - | >=1.26.0-0,<1.26.3 | 1.26.3 |
| stdlib | golang | - | - | <1.25.10 | 1.25.10 |
Severity and metrics
No CVSS data available from this advisory.