# GHSA-77xj-rrh3-wx3v: `time_calibrator` was removed from crates.io due to malicious code

> A malicious Rust crate attempted to exfiltrate environment files, requiring developers to avoid using the removed package.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 3 Mar 2026
- **Also known as:** RUSTSEC-2026-0030

## What is GHSA-77xj-rrh3-wx3v?

GHSA-77xj-rrh3-wx3v is a vulnerability in time_calibrator, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

It was reported `time_calibrator` contained malicious code, that would try to
upload `.env` files to a server.

The malicious crate had only 1 version published at 2026-02-28 and no evidence
of actual usage. The crate was removed from crates.io and the user account was
locked. There were no crates depending on this crate on crates.io.

Thanks to Gabriel Silva for finding and reporting this to the Rust security response
working group, and thanks to Emily Albini for co-ordinating with the crates.io and
infra-admin teams.

## Which versions are affected by GHSA-77xj-rrh3-wx3v?

3 open source packages ship an affected version, including time_calibrator.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `time_calibrator` | crates.io | All versions | None |
| `time_calibrator` | crates.io | All versions | None |
| `time_calibrator` | crates.io | From 0.0.0-0 | None |

## How do I fix GHSA-77xj-rrh3-wx3v?

No fix has been published for GHSA-77xj-rrh3-wx3v yet. Limit exposure of the affected software until one is available.

## Is GHSA-77xj-rrh3-wx3v being exploited?

There is no known exploitation of GHSA-77xj-rrh3-wx3v in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-77xj-rrh3-wx3v and fix it if it is affected.

What it is: GHSA-77xj-rrh3-wx3v is a vulnerability in time_calibrator, published on 3 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of GHSA-77xj-rrh3-wx3v in the wild and no public exploit code.

Affected packages and fixed versions:
- time_calibrator (crates.io): affected all versions; no fix listed
- time_calibrator (crates.io): affected all versions; no fix listed
- time_calibrator (crates.io): affected from 0.0.0-0; no fix listed

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/GHSA-77xj-rrh3-wx3v/ (Markdown: https://insights.sbomify.com/GHSA-77xj-rrh3-wx3v/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-77xj-rrh3-wx3v

---
From sbomify Insights: https://insights.sbomify.com/GHSA-77xj-rrh3-wx3v/
Summaries are generated and may contain mistakes; the official description above is the record.