RUSTSEC-2026-0191 `EbpfVm::invoke_function` performs out-of-bounds pointer arithmetic
Out-of-bounds pointer arithmetic in solana_rbpf can cause undefined behavior, potentially leading to code execution or crashes; users should migrate to solana-sbpf.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Not stated
- Victim action needed
- Not needed
- Fix
- None listed
What is RUSTSEC-2026-0191?
RUSTSEC-2026-0191 is a memory corruption vulnerability in solana_rbpf, published on 28 May 2026.
Official description
Affected versions of solana_rbpf expose the safe method
EbpfVm::invoke_function. This method computes an obfuscated VM pointer by
casting self to *mut u64 and applying a randomized offset derived from
get_runtime_environment_key().
The resulting pointer arithmetic is performed with ptr::offset, which
requires the computed pointer to remain within the same allocation. In practice,
the randomized offset can move the pointer far outside the allocation
containing the EbpfVm, causing undefined behavior before the supplied builtin
function is invoked.
Unmaintained
The upstream solana_rbpf repository is archived, and no patched version of
this crate is currently available.
Users should migrate to the maintained solana-sbpf
crate. The issue has been fixed there in
anza-xyz/sbpf#151.
Which versions are affected by RUSTSEC-2026-0191?
1 open source package ship an affected version, including solana_rbpf.
| Package | Affected | Fixed in |
|---|---|---|
solana_rbpf crates.io | From 0.8.0 | None |
How do I fix RUSTSEC-2026-0191?
No fix has been published for RUSTSEC-2026-0191 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 RUSTSEC-2026-0191 being exploited?
There is no known exploitation of RUSTSEC-2026-0191 in the wild and no public exploit code.