CVE-2026-12216 svaarala duktape duk_api_bytecode.c memory corruption
Local attackers can exploit memory corruption in the Duktape JavaScript engine to potentially execute arbitrary code or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-12216?
CVE-2026-12216 is a medium-severity memory corruption vulnerability in svaarala duktape, published on 15 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A weakness has been identified in svaarala duktape up to 2.99.99. This issue affects some unknown processing of the file duk_api_bytecode.c. Executing a manipulation of the argument count_instr can lead to memory corruption. The attack requires local access. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
Weakness: CWE-119
Which versions are affected by CVE-2026-12216?
How do I fix CVE-2026-12216?
No fix has been published for CVE-2026-12216 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-2026-12216 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-12216 exists.
Sources
Also known as DEBIAN-CVE-2026-12216, ECHO-38c0-fc48-c568, GHSA-3p43-j8hp-v57p, UBUNTU-CVE-2026-12216.