Vulnerability Details CVE-2026-59849
A flaw was found in libssh. Logic errors in automatic certificate-based public key authentication can cause libssh clients to loop indefinitely when configured certificates are missing or repeatedly rejected by a server, leading to denial of service.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 35.6%
CVSS Severity
CVSS v3 Score 3.1
References
Products affected by CVE-2026-59849
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cpe:2.3:a:libssh:libssh:0.11.0
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cpe:2.3:a:libssh:libssh:0.11.1
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cpe:2.3:a:libssh:libssh:0.11.2
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cpe:2.3:a:libssh:libssh:0.12.0
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cpe:2.3:a:redhat:hardened_images:-
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cpe:2.3:o:redhat:enterprise_linux:10.0
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cpe:2.3:o:redhat:enterprise_linux:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_els:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_eus:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:10.0
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cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_els:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems_eus:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:10.0
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_els:10.2
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cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian_eus:10.2