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OpenSSH: OpenSSH: Security bypass via mishandling of authorized_keys principals option

🗓️ 03 Jun 2026 05:06:15Reported by RedHatType 
redhat
 redhat
🔗 access.redhat.com👁 4 Views

Open Secure Shell vulnerability: principals with comma characters in a certificate authority may cause bypass.

Related
Packages
Refs
OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4aarch64openssh0:8.7p1-38.el9_4.8openssh-0:8.7p1-38.el9_4.8.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64leopenssh0:8.7p1-38.el9_4.8openssh-0:8.7p1-38.el9_4.8.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xopenssh0:8.7p1-38.el9_4.8openssh-0:8.7p1-38.el9_4.8.s390x.rpm
Red Hat Enterprise Linux9.4x86_64openssh0:8.7p1-38.el9_4.8openssh-0:8.7p1-38.el9_4.8.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64openssh-askpass0:8.7p1-38.el9_4.8openssh-askpass-0:8.7p1-38.el9_4.8.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64leopenssh-askpass0:8.7p1-38.el9_4.8openssh-askpass-0:8.7p1-38.el9_4.8.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xopenssh-askpass0:8.7p1-38.el9_4.8openssh-askpass-0:8.7p1-38.el9_4.8.s390x.rpm
Red Hat Enterprise Linux9.4x86_64openssh-askpass0:8.7p1-38.el9_4.8openssh-askpass-0:8.7p1-38.el9_4.8.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64openssh-clients0:8.7p1-38.el9_4.8openssh-clients-0:8.7p1-38.el9_4.8.aarch64.rpm
Red Hat Enterprise Linux9.4ppc64leopenssh-clients0:8.7p1-38.el9_4.8openssh-clients-0:8.7p1-38.el9_4.8.ppc64le.rpm
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03 Jun 2026 11:38Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.14.2 - 8.1
EPSS0.00031
SSVC
4