CVE-2026-59849

low

Description

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2498182

https://access.redhat.com/security/cve/CVE-2026-59849

https://access.redhat.com/errata/RHSA-2026:42922

Details

Source: Mitre, NVD

Published: 2026-07-21

Updated: 2026-07-22

Risk Information

CVSS v2

Base Score: 2.1

Vector: CVSS2#AV:N/AC:H/Au:S/C:N/I:N/A:P

Severity: Low

CVSS v3

Base Score: 3.1

Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L

Severity: Low

EPSS

EPSS: 0.00173