CVE-2026-59844

Published: Jul 21, 2026Modified: Jul 21, 2026

6.5

Vector

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

Exploitability: 2.8 / Impact: 3.6

Source: secalert@redhat.com (Secondary)

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.

Related CWEs

CWE-789

Memory Allocation with Excessive Size Value

The product allocates memory based on an untrusted, large size value, but it does not ensure that the size is within expected limits, allowing arbitrary amounts of memory to be allocated.

References (2)

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

Source: secalert@redhat.com

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

Source: secalert@redhat.com

Timeline

No history available yet.