Amazon Linux 2023 : amazon-cloudwatch-agent (ALAS2023-2026-2025)

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-2025 advisory. x509.Certificate.VerifyHostname previously called matchHostnames in a loop over all DNS Subject Alternative Name SAN entries. This caused strings.Splithost, . to execute repeatedly on the same...

AZL-87260 CVE-2026-39827 affecting package cri-o 1.30.1-1

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

AZL-87978 CVE-2026-39827 affecting package kubevirt for versions less than 1.7.1-7

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

AZL-87411 CVE-2026-39827 affecting package cert-manager for versions less than 1.12.15-9

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

AZL-87636 CVE-2026-39827 affecting package docker-buildx for versions less than 0.14.0-15

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

AZL-87170 CVE-2026-39827 affecting package buildah 1.43.1-2

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

AZL-87474 CVE-2026-39827 affecting package cf-cli for versions less than 8.7.11-7

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...

CVE-2026-39827 Invoking memory leak when rejecting channels can lead to DoS in golang.org/x/crypto/ssh

An authenticated SSH client that repeatedly opened channels which were rejected by the server caused unbounded memory growth, eventually crashing the server process and affecting all connected users. Rejected channels are now properly removed from the connection's internal state and released for...