# RUSTSEC-2026-0143 - Double-free in `vmem` storage reachable from safe Rust

Source: https://junglewise.ai/threats/rustsec-2026-0143-double-free-in-vmem-storage-reachable-from-safe-rust-e4e09606  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-14  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-05-14

Double-free in `vmem` storage reachable from safe Rust

Technologies: [oneringbuf (crates.io)](https://junglewise.ai/threats/technologies/oneringbuf). 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 14 May 2026.

**Which products and versions are affected?** oneringbuf (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.7.1.

**Is there a fix for This vulnerability?** Yes. oneringbuf (crates.io): upgrade to 0.7.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**Am I affected?** Check whether you run oneringbuf (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.

## How to fix

- oneringbuf (crates.io): upgrade to 0.7.1 or later

  ```sh
  cargo update -p oneringbuf
  ```


## Affected products

- oneringbuf (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.7.1

## Related threats

- [OneRingBuf use after free in IntoRef trait](https://junglewise.ai/threats/oneringbuf-use-after-free-in-intoref-trait-a6736ddb)
- [RUSTSEC-2026-0152 - Use-after-free](https://junglewise.ai/threats/rustsec-2026-0152-use-after-free-a195aa73)