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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2026-32283

Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls

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Status
Published
Published
Updated
Assigning organization
Go

Description

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection can deadlock, causing uncontrolled consumption of resources. This can lead to a denial of service. This only affects TLS 1.3.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Go standard library crypto/tls

Default version status: unaffected

  • 0 to < 1.25.9affected
  • 1.26.0-0 to < 1.26.2affected

References