cbcvebase.
CVE-2026-39830
published 2026-05-22

CVE-2026-39830: A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine…

PriorityP353critical9.1CVSS 3.1
AVNACLPRNUINSUCHINAH
EPSS
0.62%
47.9th percentile
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.

Affected

207 ranges· showing 25
VendorProductVersion rangeFixed in
advanced-cluster-securityrhacs-main-rhel8——
advanced-cluster-securityrhacs-rhel8-operator——
advanced-cluster-securityrhacs-roxctl-rhel8——
advanced-cluster-securityrhacs-scanner-rhel8——
advanced-cluster-securityrhacs-scanner-slim-rhel8——
advanced-cluster-securityrhacs-scanner-v4-rhel8——
assistedagent-preinstall-image-builder-rhel9——
buildah_projectbuildah——
cert-managerjetstack-cert-manager-acmesolver-rhel9——
cert-managerjetstack-cert-manager-rhel9——
complianceopenshift-security-profiles-operator-bundle——
complianceopenshift-security-profiles-rhel8-operator——
confidential-containerstrustee——
container-native-virtualizationvirt-api-rhel9——
container-native-virtualizationvirt-artifacts-server-rhel9——
container-native-virtualizationvirt-controller-rhel9——
container-native-virtualizationvirt-exportproxy-rhel9——
container-native-virtualizationvirt-exportserver-rhel9——
container-native-virtualizationvirt-handler-rhel9——
container-native-virtualizationvirt-launcher-rhel9——
container-native-virtualizationvirt-operator-rhel9——
container-tools_rhel8buildah——
container-tools_rhel8podman——
cryostatcryostat-storage-rhel9——
devspacestraefik-rhel9——

CVSS provenance

nvdv3.19.1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
vendor_redhat9.1CRITICAL
vendor_ubuntu9.1CRITICAL
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