# sec-gemini malicious code in Rust crate

Source: https://junglewise.ai/threats/rustsec-2026-0471-sec-gemini-was-removed-from-crates-io-for-malicious-1c99bb89  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-06. Updated: 2026-11-11  
License: CC BY 4.0 with a link back

Severity: info · Published 2026-11-06

A Rust library package called sec-gemini was removed from the official crates.io repository after being discovered to contain malicious code. The malicious package attempted to exfiltrate build environment data to an attacker-controlled server during compilation. Although the package was published for 17 months before removal, there was no evidence of actual adoption or usage.

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 6 November 2026.

**Which products and versions are affected?** sec-gemini (crates.io) 0.0.0, 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.

**How is This vulnerability attacked?** It is attacked over the network, in a software library.

**Am I affected?** Check whether you run sec-gemini (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.

## Technical details

The sec-gemini crate contained code that attempted to send telemetry data from the build environment to an arbitrary URL during the build process. This is a supply chain attack vector targeting Rust developers who would have included the package as a dependency. The malicious behavior would execute during compilation, potentially exfiltrating environment variables, credentials, or other sensitive build-time information.

## Affected products

- crates.io sec-gemini 0.0.0

## Timeline

- 2025-06-19: other: Malicious version published to crates.io
- 2026-11-06: disclosed
- 2026-11-10: advisory

## References

- [https://crates.io/crates/sec-gemini](https://crates.io/crates/sec-gemini)
- [https://rustsec.org/advisories/RUSTSEC-2026-0471.html](https://rustsec.org/advisories/RUSTSEC-2026-0471.html)