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openssh: openssh: shared LZ77 compression dictionary leaks plaintext across channels

🗓️ 13 Oct 2026 13:19:05Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 7 Views

Shared LZ77 dictionary in OpenSSH leaks plaintext across channels.

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Rows per page
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Hardened Imagesanyaarch64openssh10.5p1-1.2.hum1openssh-10.5p1-1.2.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xopenssh10.5p1-1.2.hum1openssh-10.5p1-1.2.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64openssh10.5p1-1.2.hum1openssh-10.5p1-1.2.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64openssh-askpass10.5p1-1.2.hum1openssh-askpass-10.5p1-1.2.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xopenssh-askpass10.5p1-1.2.hum1openssh-askpass-10.5p1-1.2.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64openssh-askpass10.5p1-1.2.hum1openssh-askpass-10.5p1-1.2.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64openssh-clients10.5p1-1.2.hum1openssh-clients-10.5p1-1.2.hum1.aarch64.rpm
Red Hat Hardened Imagesanys390xopenssh-clients10.5p1-1.2.hum1openssh-clients-10.5p1-1.2.hum1.s390x.rpm
Red Hat Hardened Imagesanyx86_64openssh-clients10.5p1-1.2.hum1openssh-clients-10.5p1-1.2.hum1.x86_64.rpm
Red Hat Hardened Imagesanyaarch64openssh-keycat10.5p1-1.2.hum1openssh-keycat-10.5p1-1.2.hum1.aarch64.rpm
Rows per page

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20 Oct 2026 04:11Current
5.7Medium risk
Vulners AI Score5.7
CVSS 3.15.3
EPSS0.00302
SSVC
7