VIR Vulnerability Intelligence Relay

CVE-2026-47066

high
Published 2026-05-25 · Modified 2026-05-27
CVSS v3
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS v2
—
VIR risk
7.5

Description

Infinite loop in Alt-Svc header parser in hackney

Predictions

Exploit likelihood
83%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db — https://osv.dev/vulnerability/EEF-CVE-2026-47066

vendor Authored 2026-05-27

Vendor advisory: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db — https://github.com/benoitc/hackney/security/advisories/GHSA-6cp8-v795-jr2j

vendor Authored 2026-05-27

Vendor advisory: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db — https://github.com/benoitc/hackney/commit/e548aba1f97ffa3f4750da7b772998fb78c01894

vendor Authored 2026-05-27

Vendor advisory: 6b3ad84c-e1a6-4bf7-a703-f496b71e49db — https://cna.erlef.org/cves/CVE-2026-47066.html

Package impact
EcosystemPackageVulnerableFixed
Hexhackney>=2.0.0-beta.1,<4.0.14.0.1

Application impact
VendorProductVersionsFixed
benoitchackney{"startIncluding":"2.0.0","endExcluding":"4.0.1"}4.0.1

References

CWEs

CWE-835

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