CVE-2026-59848
Medium
Description
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.
SeverityMedium
CVSS5.3
Exploit probability—
Product
Libssh
PublishedJul 21, 2026
First seenJul 21, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libssh libssh | No range specified | — |
| redhat hardened_images | No range specified | — |
| redhat enterprise_linux | 8.0, 9.0, 10.0 | — |
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