CVE-2026-97152 Memory corruption in Nanomsg
Remote attackers can trigger a buffer overflow in the WebSocket transport via a crafted header, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-97152?
CVE-2026-97152 is a high-severity memory corruption vulnerability in Nanomsg, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-122
Which versions are affected by CVE-2026-97152?
How do I fix CVE-2026-97152?
No fix has been published for CVE-2026-97152 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-97152 being exploited?
There is no known exploitation of CVE-2026-97152 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-97152, GHSA-qf87-675j-h456, UBUNTU-CVE-2026-97152.