CVEvulnerability
CVE-2026-59844
6.5 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2026-07-21
- Last modified
- 2026-09-01
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-789
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.
Affected configurations
• libssh libssh
• redhat hardened images
• redhat enterprise linux 8.0
• redhat enterprise linux 9.0
• redhat enterprise linux 10.0
Related
Weakness · CWE (1)
- CWE-789 Memory Allocation with Excessive Size Value weakness
References
- https://access.redhat.com/errata/RHSA-2026:42922 Vendor Advisory
- https://access.redhat.com/errata/RHSA-2026:55855 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:62217 access.redhat.com
- https://access.redhat.com/errata/RHSA-2026:62218 access.redhat.com
- https://access.redhat.com/security/cve/CVE-2026-59844 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2498177 Issue Tracking, Vendor Advisory