# RUSTSEC-2026-0157 - Several memory corruption issues via safe APIs

Source: https://junglewise.ai/threats/rustsec-2026-0157-several-memory-corruption-issues-via-safe-apis-cf82560c  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-01  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-06-01

Several memory corruption issues via safe APIs

Technologies: [metacall (crates.io)](https://junglewise.ai/threats/technologies/metacall). Vendors: [crates.io](https://junglewise.ai/threats/vendors/crates-io).

## Quick answers

**Is This vulnerability exploited in the wild?** No. Junglewise Threat Intelligence has no report of This vulnerability being exploited in the wild.

**How severe is This vulnerability?** Informational severity, published 1 June 2026.

**Which products and versions are affected?** metacall (crates.io) SEMVER:introduced=0.0.0-0.

**Is there a fix for This vulnerability?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected?** Check whether you run metacall (crates.io) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- metacall (crates.io) SEMVER:introduced=0.0.0-0

## Related threats

- [RUSTSEC-2026-0156 - Bad-free in `MetaCallException::new`](https://junglewise.ai/threats/rustsec-2026-0156-bad-free-in-metacallexception-new-d6c105d5)
- [RUSTSEC-2026-0139 - Null-pointer dereference and double-free via safe APIs](https://junglewise.ai/threats/rustsec-2026-0139-null-pointer-dereference-and-double-free-via-safe-3b630b65)