TLS 1.3 client skips server authentication when ServerHello carries an unsolicited pre_shared_key extension

Mariner

Read the vendor bulletin Get alerts for azl3 erlang 26.2.5.21-6 on Azure Linux

CriticalCVSS not listedCritical severity

Scope

What the vendor says is affected

azl3 erlang 26.2.5.21-6 on Azure Linux 3.0

Next step

What the vendor recommends

Release Notes

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Timeline

When this advisory changed

Sep 24, 2026 at 1:45 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 27, 2026 at 11:11 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.

Vulnerabilities

CVEs named in this advisory

CVE-2026-89422View CVSS, KEV, EPSS, and threat context

Source

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Vendor: Microsoft Security Response Center
Advisory ID: CVE-2026-89422
Last source check: Sep 27, 2026 at 11:11 PM UTC

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Watch azl3 erlang 26.2.5.21-6 on Azure Linux

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What the vendor says is affected

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CVEs named in this advisory

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