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Vulnerability record · CVE-2026-97152 · published 24 September 2026

CVE-2026-97152: Heap-based buffer overflow vulnerability

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.

8.6 CVSS 4.0 High EPSS 0.31% · top 78.3% CWE-122 · Heap-based buffer overflow Awaiting Analysis
8.6CVSS 4.0 base score
0.31%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
3References
24 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/nanomsg/nanomsg/pull/1130
https://github.com/nanomsg/nanomsg/releases/tag/1.2.3
https://nanomsg.org

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Source: NIST National Vulnerability Database (record CVE-2026-97152), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.