CVE-2026-88409 Memory corruption in n/a
Attackers can cause a Denial of Service in FalkorDB via a crafted input triggering a buffer overflow in the matrix decoding function.
- 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-2026-88409?
CVE-2026-88409 is a high-severity memory corruption vulnerability in n/a, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
FalkorDB (Redis module) v4.20.1 to v4.20.4 was discovered to contain a buffer overflow in the _Decode_GrB_Matrix function (/v19/decode_matrix.c). This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted input.
Weakness: CWE-120
Which versions are affected by CVE-2026-88409?
How do I fix CVE-2026-88409?
No fix has been published for CVE-2026-88409 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-2026-88409 being exploited?
There is no known exploitation of CVE-2026-88409 in the wild and no public exploit code.
Sources
Also known as GHSA-632v-pvcp-7698.