VIR Vulnerability Intelligence Relay

CVE-2026-39821

critical
Published 2026-05-22 · Modified 2026-05-22
CVSS v3
9.6
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N
CVSS v2
—
VIR risk
9.6

Description

Invoking failure to reject ASCII-only Punycode-encoded labels in golang.org/x/net/idna

Predictions

Exploit likelihood
96%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact
EcosystemPackageVulnerableFixed
golang Gogolang.org/x/net<0.55.00.55.0

References

CWEs

CWE-1289: CWE-1289

Verify integrity in audit chain (admin only). AS-IS.