CVE-2026-88357 Denial of service in n/a
Crafted network input causes unaligned memory access in nDPI, leading to process termination and denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-88357?
CVE-2026-88357 is a high-severity denial of service vulnerability in n/a, published on 24 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
nDPI 5.1.0 contains a memory access issue in the DNS dissector and serializer deserialization code. Specially crafted network input can cause byte-buffer addresses at odd offsets to be cast to uint16_t or wider integer pointers and directly dereferenced without alignment checks. This results in undefined behavior and can cause process termination in UBSan-instrumented builds or on strict-alignment architectures, leading to denial of service.
Weakness: CWE-1335
Which versions are affected by CVE-2026-88357?
How do I fix CVE-2026-88357?
No fix has been published for CVE-2026-88357 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-88357 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-88357 exists.
Sources
Also known as DEBIAN-CVE-2026-88357, GHSA-hjcq-5876-2cpr, UBUNTU-CVE-2026-88357.