# RUSTSEC-2021-0139: ansi_term is Unmaintained

> The ansi_term crate is unmaintained and deprecated, requiring users to migrate to supported alternatives to ensure security and functionality.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not stated
- **Attackable:** Not stated
- **Victim action needed:** Not stated
- **Fix available:** No
- **Published:** 18 Aug 2021

## What is RUSTSEC-2021-0139?

RUSTSEC-2021-0139 is a vulnerability in ansi_term, published on 18 Aug 2021. 

### Official description

The maintainer has advised that this crate is deprecated and will not receive any maintenance.

The crate does not seem to have much dependencies and may or may not be ok to use as-is.

Last release seems to have been three years ago.

## Possible Alternative(s)

 The below list has not been vetted in any way and may or may not contain alternatives;

 - [ansiterm](https://crates.io/crates/ansiterm)
 - [anstyle](https://github.com/epage/anstyle)
 - [console](https://crates.io/crates/console)
 - [nu-ansi-term](https://crates.io/crates/nu-ansi-term)
 - [owo-colors](https://crates.io/crates/owo-colors)
 - [stylish](https://crates.io/crates/stylish)
 - [yansi](https://crates.io/crates/yansi)

## Dependency Specific Migration(s)

 - [structopt, clap2](https://github.com/clap-rs/clap/discussions/4172)

## Which versions are affected by RUSTSEC-2021-0139?

1 open source package ship an affected version, including ansi_term.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `ansi_term` | crates.io | From 0.0.0-0 | None |

## How do I fix RUSTSEC-2021-0139?

No fix has been published for RUSTSEC-2021-0139 yet. Limit exposure of the affected software until one is available.

## Is RUSTSEC-2021-0139 being exploited?

There is no known exploitation of RUSTSEC-2021-0139 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for RUSTSEC-2021-0139 and fix it if it is affected.

What it is: RUSTSEC-2021-0139 is a vulnerability in ansi_term, published on 18 Aug 2021. 
Exploitation: There is no known exploitation of RUSTSEC-2021-0139 in the wild and no public exploit code.

Affected packages and fixed versions:
- ansi_term (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/RUSTSEC-2021-0139/ (Markdown: https://insights.sbomify.com/RUSTSEC-2021-0139/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/RUSTSEC-2021-0139

---
From sbomify Insights: https://insights.sbomify.com/RUSTSEC-2021-0139/
Summaries are generated and may contain mistakes; the official description above is the record.