CVE-2026-58051: libssh2 - Free of Uninitialized Pointer in publickey List Cleanup
Affected: libssh2 · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 21% of scored CVEs
DescriptionCVE.org
libssh2 through 1.11.1 grows its publickey list with SSH2_REALLOC but does not zero-initialize new entries before parsing populates them, so a parse failure reaching the cleanup path leaves libssh2_publickey_list_free operating on an uninitialized entry. A malicious SSH server offering the publickey subsystem can use a malformed response to make cleanup free an uninitialized, attacker-influenceable attrs pointer in a connecting libssh2 client.
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- libssh2 · libssh2up to and including 1.11.1
On the Atlas
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CoverageNo articles yet
No CyberSIXT article names CVE-2026-58051 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.