# Stack overflow in rustc_serialize when parsing deeply nested JSON

Source: https://junglewise.ai/threats/stack-overflow-in-rustc-serialize-when-parsing-deeply-nested-json-f4b4d9c5  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-06-17  
License: CC BY 4.0 with a link back

Severity: info · Published 2022-06-17

Stack overflow in rustc_serialize when parsing deeply nested JSON

Technologies: [rustc-serialize (crates.io)](https://junglewise.ai/threats/technologies/rustc-serialize). 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 17 June 2022.

**Which products and versions are affected?** rustc-serialize (crates.io) SEMVER:introduced=0,last_affected=0.3.24.

**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 rustc-serialize (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

- rustc-serialize (crates.io) SEMVER:introduced=0,last_affected=0.3.24

## Related threats

- [RUSTSEC-2025-0025 - rustc-serialize is unmaintained](https://junglewise.ai/threats/rustsec-2025-0025-rustc-serialize-is-unmaintained-50eb68fc)
- [RUSTSEC-2022-0004 - Stack overflow in rustc_serialize when parsing deeply nested JSON](https://junglewise.ai/threats/rustsec-2022-0004-stack-overflow-in-rustc-serialize-when-parsing-deeply-af9c588f)