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EEF-CVE-2026-89422 TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension

🗓️ 22 Sep 2026 08:49:16Reported by GoogleType 
osv
 osv🔗 osv.dev👁 3 Views

Summary Key Exchange without Entity Authentication vulnerability in Erlang/OTP ssl allows a peer that answers a TLS 1.3 client connection to impersonate the intended server. A pre_shared_key extension in the ServerHello that the client never offer...

Related
Refs
ReporterTitlePublishedViews
Family
circl
Circl		CVE-2026-89422
22 Sep 202610:00
–circl
cve
CVE		CVE-2026-89422
22 Sep 202608:49
–cve
cvelist
Cvelist		CVE-2026-89422 TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension
22 Sep 202608:49
–cvelist
euvd
EUVD		EUVD-2026-84338
22 Sep 202608:49
–euvd
nvd
NVD		CVE-2026-89422
22 Sep 202609:17
–nvd

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22 Sep 2026 09:11Current
CVSS 49.3
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