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VULNERABILITIES

CVE-2026-59844 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://access.redhat.com/errata/RHSA-2026:42922 [email protected]Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:55855 [email protected]
https://access.redhat.com/errata/RHSA-2026:62217 [email protected]
https://access.redhat.com/errata/RHSA-2026:62218 [email protected]
https://access.redhat.com/security/cve/CVE-2026-59844 [email protected]Vendor Advisory

see all 6 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-789Memory Allocation with Excessive Size Value[email protected]

Affected Products

ProductVersions
libssh libssh
All versions

CPE

  • cpe:2.3:a:libssh:libssh:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat hardened images
All versions

CPE

  • cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
redhat enterprise linux
8.0
9.0
10.0

CPE

  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

9 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-59844
NVD Published Date:
Jul 21, 2026
NVD Last Modified:
Sep 1, 2026
Source:
[email protected]
CVE-2026-59844 Details - Not Deferred