CVE-2026-51106 Deserialization in n/a
A local attacker can cause a denial of service in the qTox client through a vulnerability in the serialization component.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-51106?
CVE-2026-51106 is a critical unsafe deserialization vulnerability in n/a, published on 26 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
An issue in TokTok qTox v1.18.4 allows a local attacker to cause a denial of service via the src/persistence/serialize.cpp component
Which versions are affected by CVE-2026-51106?
How do I fix CVE-2026-51106?
No fix has been published for CVE-2026-51106 yet. Limit exposure of the affected software until one is available.
Upgrade, and only deserialise data from trusted sources or with an allow-list of types. More about Unsafe deserialization.
Is CVE-2026-51106 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51106 exists.
Sources
Also known as GHSA-wq69-v2pv-fr6p.