HIGH 7.5 Microsoft
CVE-2026-32283
Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls
Microsoft Security Update 2026-Apr: Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls
Affected Products
- cbl2 golang 1.18.8-10 on CBL Mariner 2.0
- cbl2 golang 1.22.7-5 on CBL Mariner 2.0
- azl3 golang 1.25.8-1 on Azure Linux 3.0
- azl3 golang 1.26.1-1 on Azure Linux 3.0
- cbl2 msft-golang 1.25.8-1 on CBL Mariner 2.0
- azl3 golang 1.25.9-1 on Azure Linux 3.0
- azl3 golang 1.26.2-1 on Azure Linux 3.0
- azl3 golang 1.27.0-1 on Azure Linux 3.0
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32283
- https://nvd.nist.gov/vuln/detail/CVE-2026-32283
This high severity vulnerability with a CVSS score of 7.5 was published on 2026-04-14 via Microsoft. Affected: cbl2 golang 1.18.8-10 on CBL Mariner 2.0, cbl2 golang 1.22.7-5 on CBL Mariner 2.0, azl3 golang 1.25.8-1 on Azure Linux 3.0 and 5 more.
vulnfeed aggregates 14156 vulnerabilities from NVD, CISA KEV,
Ubuntu, Debian, Red Hat, Kubernetes, Exploit-DB, OSS-Security, GitHub and OpenStack — updated every 4 hours.