> CVE-2026-42505

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PUBLISHED
2026-07-08 17:17
MODIFIED
2026-07-08 17:17
EPSS (Prob. Exploit)
0.38%
Top 67.7%
DATA SOURCES:
NVD 🔗 2026-07-08 RED HAT 🔗 2026-07-12 FIRST EPSS 🔗 2026-11-01 OSV 🔗 2026-11-02 MSRC 🔗 2026-11-02

> 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.

> AFFECTED_PRODUCTS

ℹ️ Aucun produit affecté n'a encore été publié par NVD pour cette CVE.

> RED HAT SECURITY ADVISORIES

Red Hat Security Advisory: Red Hat build of OpenTelemetry 3.10.2 release
Red Hat build of OpenTelemetry 3.10.2 has been released
Red Hat Security Advisory: Red Hat AI Base Images 3.5.5 (Neuron)
Red Hat AI Base Images 3.5.5 (Neuron) is now available.
Red Hat Security Advisory: Red Hat AI Base Images 3.4.6 (Neuron)
Red Hat AI Base Images 3.4.6 (Neuron) is now available.

> RED HAT SEVERITY ASSESSMENT

THREAT SEVERITY
Moderate

> OSV (GOOGLE OPEN SOURCE VULNERABILITIES)

Invoking Encrypted Client Hello privacy leak in crypto/tls

AFFECTED PACKAGES:
Unknown / Unknown
7 versions affected
ALIASES:
BIT-golang-2026-42505, GO-2026-5856

> HISTORIQUE DES MODIFICATIONS

Première apparition
08/07/2026 17:17
Source: NVD
📊 ENRICHISSEMENT 12/07/2026 05:00
REDHAT
Champ modifié: Sévérité Red Hat
Ancienne valeur:
N/A
Nouvelle valeur:
{ "threat_severity": "Moderate", "severity_scale": null }
📊 ENRICHISSEMENT 12/07/2026 05:00
REDHAT
Champ modifié: Red Hat
Ancienne valeur:
Non
Nouvelle valeur:
Oui
Total des modifications: 2 Dernière mise à jour: 3 months ago

> REFERENCES

https://go.dev/cl/775960
https://go.dev/issue/79282
https://groups.google.com/g/golang-announce/c/OrmQE_Yp5Sc
https://pkg.go.dev/vuln/GO-2026-5856
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