CVE-2026-97152

High

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.

SeverityHigh
CVSS8.6
Exploit probability—
ProductNanomsg
PublishedSep 24, 2026
First seenSep 24, 2026
Weakness typeCWE-122CWE-122

How to fix

Update
  • Nanomsg Nanomsg1.2.3 or later

Affected products

ProductAffected versionsFixed in
Nanomsg Nanomsg0.5.0 ≤ v < 1.2.31.2.3

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