Vulnerability Details CVE-2026-59847
A flaw was found in libssh. Incorrect AES-GCM finalization checks in builds using the OpenSSL backend can effectively remove integrity protection, allowing an in-path attacker to modify plaintext on the wire without detection.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 26.3%
CVSS Severity
CVSS v3 Score 5.9
References
- https://access.redhat.com/errata/RHSA-2026:42922
- https://access.redhat.com/errata/RHSA-2026:55855
- https://access.redhat.com/errata/RHSA-2026:62217
- https://access.redhat.com/errata/RHSA-2026:62218
- https://access.redhat.com/security/cve/CVE-2026-59847
- https://bugzilla.redhat.com/show_bug.cgi?id=2498180
Products affected by CVE-2026-59847
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cpe:2.3:a:libssh:libssh:0.10.0
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cpe:2.3:a:libssh:libssh:0.10.1
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cpe:2.3:a:libssh:libssh:0.10.2
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cpe:2.3:a:libssh:libssh:0.10.3
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cpe:2.3:a:libssh:libssh:0.10.4
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cpe:2.3:a:libssh:libssh:0.10.5
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cpe:2.3:a:libssh:libssh:0.10.6
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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:libssh:libssh:0.9.0
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cpe:2.3:a:libssh:libssh:0.9.1
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cpe:2.3:a:libssh:libssh:0.9.2
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cpe:2.3:a:libssh:libssh:0.9.3
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cpe:2.3:a:libssh:libssh:0.9.4
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cpe:2.3:a:libssh:libssh:0.9.5
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cpe:2.3:a:libssh:libssh:0.9.6
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cpe:2.3:a:libssh:libssh:0.9.7
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cpe:2.3:a:libssh:libssh:0.9.8
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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:8.0
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cpe:2.3:o:redhat:enterprise_linux:9.0