CVE-2026-59850

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

4.3

Vector

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

Exploitability: 2.8 / Impact: 1.4

Source: secalert@redhat.com (Secondary)

Description

A flaw was found in libssh. If data packets are processed after a channel is closed, channel data callbacks can be invoked after the associated data has already been freed, leading to crashes or possible use-after-free conditions.

Related CWEs

CWE-416

Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

References (2)

https://access.redhat.com/security/cve/CVE-2026-59850

Source: secalert@redhat.com

https://bugzilla.redhat.com/show_bug.cgi?id=2498183

Source: secalert@redhat.com

Timeline

No history available yet.