Vulnerability Details CVE-2026-59842
A flaw was found in libssh. During server-side GSSAPI key exchange, a client-supplied Curve25519 public key shorter than the expected length is copied without proper length validation, leading to an out-of-bounds heap read. This could allow a remote unauthenticated attacker to disclose small amounts of server memory.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 34.4%
CVSS Severity
CVSS v3 Score 3.7
References
Products affected by CVE-2026-59842
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cpe:2.3:a:libssh:libssh:-
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cpe:2.3:a:redhat:hardened_images:-
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cpe:2.3:o:redhat:enterprise_linux:10.0