CVE-2026-10267 janet-lang janet debug.c doframe out-of-bounds
A local attacker can trigger an out-of-bounds read in the Janet language runtime, potentially causing crashes or leaking memory.
- 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-2026-10267?
CVE-2026-10267 is a medium-severity memory corruption vulnerability in janet-lang janet, published on 1 Jun 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A security flaw has been discovered in janet-lang janet up to 1.41.0. This affects the function doframe of the file src/core/debug.c. Performing a manipulation results in out-of-bounds read. Attacking locally is a requirement. The exploit has been released to the public and may be used for attacks. The patch is named ed17dd2c5913a23fb1107251e44a9410a3c30cf5.
Which versions are affected by CVE-2026-10267?
How do I fix CVE-2026-10267?
No fix has been published for CVE-2026-10267 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-2026-10267 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-10267 exists.
Sources
Also known as GHSA-mmcx-pc5f-m5m4.