# RUSTSEC-2023-0002 - git2 Rust package suppresses ssh host key checking

Source: https://junglewise.ai/threats/rustsec-2023-0002-git2-rust-package-suppresses-ssh-host-key-checking-8d7f91ab  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2023-01-12  
License: CC BY 4.0 with a link back

Severity: info · Published 2023-01-12

git2 Rust package suppresses ssh host key checking

Technologies: [git2 (crates.io)](https://junglewise.ai/threats/technologies/git2). 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 12 January 2023.

**Which products and versions are affected?** git2 (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.16.0.

**Is there a fix for This vulnerability?** Yes. git2 (crates.io): upgrade to 0.16.0 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 git2 (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

- git2 (crates.io): upgrade to 0.16.0 or later

  ```sh
  cargo update -p git2
  ```


## Affected products

- git2 (crates.io) SEMVER:introduced=0.0.0-0,fixed=0.16.0

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- [RUSTSEC-2026-0183 - Potential undefined behavior when calling Remote::list()](https://junglewise.ai/threats/rustsec-2026-0183-potential-undefined-behavior-when-calling-remote-list-81c95b20)
- [git2 has potential undefined behavior when dereferencing Buf struct](https://junglewise.ai/threats/git2-has-potential-undefined-behavior-when-dereferencing-buf-struct-12fe5959)
- [RUSTSEC-2026-0008 - Potential undefined behavior when dereferencing Buf struct](https://junglewise.ai/threats/rustsec-2026-0008-potential-undefined-behavior-when-dereferencing-buf-6f571e76)
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