RUSTSEC-2026-0130 Out-of-bounds read/write in `Index` and `IndexMut` implementations
Out-of-bounds read/write in Caja indexing allows memory corruption and potential code execution via safe public APIs.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- Available
What is RUSTSEC-2026-0130?
RUSTSEC-2026-0130 is a memory corruption vulnerability in caja, published on 2 May 2026.
Official description
The Index and IndexMut implementations for Caja use unchecked pointer
arithmetic without bounds validation. Creating a Caja with a small key and
then accessing an out-of-range index causes out-of-bounds reads or writes
beyond the allocated memory.
This can be triggered through safe public APIs — the [] indexing operator
on a Caja with an out-of-range index — with no unsafe required from the
caller.
Which versions are affected by RUSTSEC-2026-0130?
1 open source package ship an affected version, including caja.
| Package | Affected | Fixed in |
|---|---|---|
caja crates.io | From 0.0.0-0 | 0.3.0 |
How do I fix RUSTSEC-2026-0130?
Upgrade caja to 0.3.0 or later.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is RUSTSEC-2026-0130 being exploited?
There is no known exploitation of RUSTSEC-2026-0130 in the wild and no public exploit code.