CVE-2026-33811
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Błąd w resolverze DNS cgo może prowadzić do podwójnego zwolnienia pamięci i awarii.
CVSS
7.5
EPSS
0.8%
Exploit
none
Vendor
golang
Opis źródłowy (NVD)
When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash.
brak
Brak patcha
Źródła i daty
| Źródło | Wartość |
|---|---|
| NVD – CVSS | 7.5 |
| CISA KEV (aktywnie wykorzystywane) | Nie |
| FIRST EPSS (prawdopodobieństwo exploita) | 0.8% |
| Opublikowano (NVD) | 2026-05-07 20:16:42 UTC |
| Ostatnia modyfikacja (NVD) | 2026-08-27 13:17:30 UTC |
Referencje
- https://go.dev/cl/767860 (security@golang.org) [Patch]
- https://go.dev/issue/78803 (security@golang.org) [Issue Tracking]
- https://groups.google.com/g/golang-announce/c/qcCIEXso47M (security@golang.org) [Mailing List, Third Party Advisory]
- https://pkg.go.dev/vuln/GO-2026-4981 (security@golang.org) [Vendor Advisory]
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