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Red HatCVE-2026-59849

Red Hat libssh. Logic errors: denial of service

Red Hat

CVE-2026-59849 · Published Jul 21, 2026 · updated Nov 6, 2026

Low3.1
No fix yet
Red Hat advisory

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.

Affected versions

PackageAffectedFixed in
Red Hat Enterprise Linux 8
Product
all versionsNo fix yet
Red Hat Enterprise Linux 9
Product
all versionsNo fix yet
Details and references

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