Description
Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
Published: 2026-07-08
Score: 5.3 Medium
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 08 Jul 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-201
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 08 Jul 2026 18:30:00 +0000

Type Values Removed Values Added
First Time appeared Go Standard Library
Go Standard Library crypto Tls
Vendors & Products Go Standard Library
Go Standard Library crypto Tls

Wed, 08 Jul 2026 16:30:00 +0000

Type Values Removed Values Added
Description Handshakes which used Encrypted Client Hello could be de-anonymized by a passive network observer due to a disclosure of pre-shared key identities in the unencrypted client hello.
Title Invoking Encrypted Client Hello privacy leak in crypto/tls
References

Subscriptions

Go Standard Library Crypto Tls
cve-icon MITRE

Status: PUBLISHED

Assigner: Go

Published:

Updated: 2026-07-08T19:38:17.603Z

Reserved: 2026-04-28T00:21:12.792Z

Link: CVE-2026-42505

cve-icon Vulnrichment

Updated: 2026-07-08T18:04:08.858Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-08T18:15:06Z

Weaknesses