What is CVE-2026-59848?

CVE-2026-59848 is a medium-severity vulnerability in Red Hat Enterprise Linux 10. CVSS score: 5.3/10. Published 2026-07-21.

How severe is CVE-2026-59848?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Vulnerability in Red Hat Enterprise Linux 10

CVE-2026-59848

A flaw was found in libssh. A malicious SFTP server can send responses for unknown request IDs that libssh clients keep queued indefinitely, causing unbounded memory growth and client-side denial of service.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.

Affected products

Red Hat Enterprise Linux 10
Red Hat Enterprise Linux 8
Red Hat Enterprise Linux 9
Red Hat Hardened Images

References

secalert@redhat.com (x_refsource_REDHAT, vdb-entry)
secalert@redhat.com (x_refsource_REDHAT, issue-tracking)

Frequently asked questions

What is CVE-2026-59848?: CVE-2026-59848 is a medium-severity vulnerability in Red Hat Enterprise Linux 10. CVSS score: 5.3/10. Published 2026-07-21.
How severe is CVE-2026-59848?: Medium severity. CVSS v3 base score is 5.3 out of 10.