# RUSTSEC-2026-0220 - Uint shift operations: incorrect overflow flags and truncated shift amounts

Source: https://junglewise.ai/threats/rustsec-2026-0220-uint-shift-operations-incorrect-overflow-flags-and-0413f268  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-07-08  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-07-08

Uint shift operations: incorrect overflow flags and truncated shift amounts

Technologies: [ruint (crates.io)](https://junglewise.ai/threats/technologies/ruint). 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 8 July 2026.

**Which products and versions are affected?** ruint (crates.io) SEMVER:introduced=0.0.0-0,fixed=1.20.0.

**Is there a fix for This vulnerability?** Yes. ruint (crates.io): upgrade to 1.20.0 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 ruint (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

- ruint (crates.io): upgrade to 1.20.0 or later

  ```sh
  cargo update -p ruint
  ```


## Affected products

- ruint (crates.io) SEMVER:introduced=0.0.0-0,fixed=1.20.0

## Related threats

- [ruint affected by unsoundness of safe `reciprocal_mg10`](https://junglewise.ai/threats/ruint-affected-by-unsoundness-of-safe-reciprocal-mg10-2d9d7a00)
- [RUSTSEC-2025-0137 - Unsoundness of safe `reciprocal_mg10`](https://junglewise.ai/threats/rustsec-2025-0137-unsoundness-of-safe-reciprocal-mg10-9d2c3b10)