CVE-2026-32283
highpriority · track · 30EPSS 0.006 · 50 %ileCHDEEUFRRUUSEPSS · scored 2026-10-27
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.
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
No fix is available; mitigate or reduce exposure.
- No fix availableLabX Standardmettler_toledo_psirt
This vulnerability will be fixed in the upcoming releases
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (137)
Products and version ranges known to be affected.
- Red Hat Ansible Automation Platform 2.5all versionscert_bundDEcpe:/a:redhat:ansible_automation_platform:2.5
- Red Hat Ansible Automation Platform 2.6all versionscert_bundDEcpe:/a:redhat:ansible_automation_platform:2.6
- Red Hat Enterprise Linux 10.0 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:10.0_extended_update_support
- Red Hat Enterprise Linux 9.6 Extended Update Supportall versionscert_bundDEcpe:/o:redhat:enterprise_linux:9.6_extended_update_support
- Red Hat Enterprise Linux Advanced Cluster Securityall versionscert_bundDEcpe:/o:redhat:enterprise_linux:advanced_cluster_security
- Red Hat Enterprise Linux Edge Managerall versionscert_bundDEcpe:/o:redhat:enterprise_linux:edge_manager
- Red Hat OpenShift API for Data Protectionall versionscert_bundDEcpe:/a:redhat:openshift:api_for_data_protection
- Red Hat OpenShift Container Platformall versionscert_bundDEcpe:/a:redhat:openshift:container_platform
- Red Hat OpenShift Network Observability 1.11.2all versionscert_bundDEcpe:/a:redhat:openshift:network_observability_1.11.2
advisories (7)
Vendor and ecosystem advisories describing this.
- VDE-2026-088METTLER TOLEDO: LabX Standard and Enterprise Report on External Component Analysis - v21.42026-08-20csaf · mettler_toledo_psirtCH
The vulnerabilities found in LabX Standard versions 21.3.22 - 21.4.23 are CVE-2025-69419, CVE-2026-0915, CVE-2025-15467, CVE-2026-4800, CVE-2026-33186, CVE-2026-39821, CVE-2026-33671 and are fixed in LabX Standard v21.4.25. The vulnerabilities found in LabX Enterprise versions 21.3.22 - 21.4.23 are CVE-2026-4800, CVE-2026-33186, CVE-2026-39821, CVE-2026-33671 and are fixed in LabX Enterprise v21.4.25 All other vulnerabilities are to be fixed in the upcoming releases.
- WID-SEC-W-2026-1006Golang Go: Mehrere SchwachstellenDeutsch2026-04-07csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Golang Go ausnutzen, um Speicherbeschädigungen zu verursachen, beliebigen Code auszuführen, Sicherheitsmaßnahmen zu umgehen, einen Denial-of-Service-Zustand auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.
- WID-SEC-W-2026-2929Splunk Splunk Enterprise: Mehrere SchwachstellenDeutsch2026-08-19csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Splunk Splunk Enterprise ausnutzen, um beliebigen Code auszuführen, Berechtigungen zu erweitern, Sicherheitsmaßnahmen zu umgehen, SQL-Injection-, serverseitige Request-Forgery- und Cross-Site-Scripting-Angriffe durchzuführen, sensible Informationen offenzulegen oder zu manipulieren, Denial-of-Service-Zustände auszulösen oder andere, nicht näher spezifizierte Angriffe durchzuführen.
- BIT-golang-2026-32283Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls2026-04-13vendor · osvUS
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.
- CERTFR-2026-AVI-1366Multiples vulnérabilités dans les produits SplunkFrançais2026-10-22vendor · certfrFR
- CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
- GO-2026-4870Unauthenticated TLS 1.3 KeyUpdate record can cause persistent connection retention and DoS in crypto/tls2026-04-07vendor · osvUS
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.
also known as (6)
Other names and identifiers for this entity.
- CNNVD-202604-1884cnnvd
- EUVD-2026-20014enisa_euvd
- BDU:2026-07246fstec_bdu
- GHSA-jrg3-gfjw-hm96enisa_euvd
- BIT-golang-2026-32283osv
- GO-2026-4870osv
sources
Which sources assert this record, and when.
references (152)
External citations — patches, advisories, analysis.
- https://go.dev/cl/763767cnnvd
- https://go.dev/dl/Patchcnnvd
- https://go.dev/issue/78334cnnvd
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUcnnvd
- https://pkg.go.dev/vuln/GO-2026-4870cnnvd
- https://go.dev/cl/763767enisa_euvd
- https://go.dev/issue/78334enisa_euvd
- https://groups.google.com/g/golang-announce/c/0uYbvbPZRWUenisa_euvd
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