Home/CVE/If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection c
CVE

CVE-2026-32283

If one side of the TLS connection sends multiple key update messages post-handshake in a single record, the connection c

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.

HIGH · CVSS 7.5 EPSS 0.00019
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0

Weakness Classification

Affected Products & Versions

2
golang go< 1.25.9
golang go>= 1.26.0 and < 1.26.2

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Go stdlib fixed in 1.25.9, 1.26.2

Scoring & Timeline

7.5
HIGH · CVSS v3.1 · security@golang.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD08 Apr 2026 · 02:16 AM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.

Vendor Advisories

30
suse-csafopenSUSE-SU-2026:20703-1
rhsaRHSA-2026:21769Important
rhsaRHSA-2026:22347Important
rhsaRHSA-2026:22423Important
suse-csafopenSUSE-SU-2026:10664-1
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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