CVE-2026-97152

HIGH CVSS 4.0: 8.6 EPSS 0.31%
Updated Sep 25, 2026
Nanomsg
Parameter Value
CVSS 8.6 (HIGH)
Affected Versions before 1.2.3
Type CWE-122 (Heap-based Buffer Overflow)
Vendor Nanomsg
Public PoC No

Nanomsg versions 0.5-beta through 1.x before 1.2.3 has a remotely exploitable buffer overflow in the WebSocket transport, due to an unchecked copy of the Sec-WebSocket-Version header, through snprintf.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
None
No data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service

CVSS Vector v4.0

Vulnerable Products

nanomsg:nanomsg