CVE-2026-15370

A flaw was found in libssh. During SFTP server directory listing, the longname field is constructed with unsafe concatenation into a fixed-size stack buffer. When a client causes the server to list attacker-controlled filenames, sufficiently long names can overflow that stack buffer and may lead to crashes or possible code execution on the server.

CVSS v3 6.7 MEDIUM

6.7^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 0.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity HIGH

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:47768	Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:55855
https://access.redhat.com/security/cve/CVE-2026-15370	Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2499049	Issue Tracking Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:libssh:libssh:-:::::::*
	cpe:2.3:a:redhat:hardened_images:-:::::::*
	cpe:2.3:o:redhat:enterprise_linux:10.0:::::::*

History

No history.

Information

Published : 2026-07-21 09:16

Updated : 2026-08-17 22:16

NVD link : CVE-2026-15370

Mitre link : CVE-2026-15370

CVE.ORG link : CVE-2026-15370

JSON object : View

Products Affected

redhat

enterprise_linux
hardened_images

libssh

libssh

CWE

CWE-121

Stack-based Buffer Overflow

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