CVE-2026-59844

medium

Description

A flaw was found in libssh. A remote authenticated client can issue SSH_FXP_READ requests with an arbitrarily large length, causing a libssh SFTP server to allocate excessive memory and potentially exhaust it through repeated requests.

References

https://bugzilla.redhat.com/show_bug.cgi?id=2498177

https://access.redhat.com/security/cve/CVE-2026-59844

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: 6.8

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

Severity: Medium

CVSS v3

Base Score: 6.5

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