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Nanomsg · buffer overflow

CVSS 4.0 8.6 HIGHCheck source for fixed versionsKEV status unknown

Historical advisory recorded 23 Oct 2026 15:48:27 UTC. Read the latest advisory.

cve-program · CVE-2026-97152

Published

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.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-97152

Published

Nanomsg

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "defaultStatus": "unaffected",
                    "modules": [
                        "websocket"
                    ],
                    "product": "Nanomsg",
                    "programFiles": [
                        "ws_handshake.c"
                    ],
                    "repo": "https://github.com/nanomsg/nanomsg",
                    "vendor": "Nanomsg",
                    "versions": [
                        {
                            "lessThan": "1.2.3",
                            "status": "affected",
                            "version": "0.5.0",
                            "versionType": "semver"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

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Sources read 12 Nov 14:22 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current