# GHSA-95hm-pr6q-298w: Possible unsound public API

> An attacker can cause a denial of service by triggering an unchecked index access in the SyncVec struct of the fast-able Rust library.

- **Severity:** Not scored
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 25 Apr 2025
- **Also known as:** RUSTSEC-2025-0063

## What is GHSA-95hm-pr6q-298w?

GHSA-95hm-pr6q-298w is a denial of service vulnerability in fast-able, published on 25 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

The public accessible struct SyncVec has a public safe method get_unchecked. It accept a parameter index and used in the get_unchecked without sufficient checks as mentioned [here](https://doc.rust-lang.org/std/primitive.slice.html#method.get_unchecked).

## Which versions are affected by GHSA-95hm-pr6q-298w?

3 open source packages ship an affected version, including fast-able.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `fast-able` | crates.io | All versions | 1.13.7 |
| `fast-able` | crates.io | All versions | 1.13.7 |
| `fast-able` | crates.io | From 0.0.0-0 | 1.13.7 |

## How do I fix GHSA-95hm-pr6q-298w?

Upgrade fast-able to 1.13.7 or later.

## Is GHSA-95hm-pr6q-298w being exploited?

There is no known exploitation of GHSA-95hm-pr6q-298w in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for GHSA-95hm-pr6q-298w and fix it if it is affected.

What it is: GHSA-95hm-pr6q-298w is a denial of service vulnerability in fast-able, published on 25 Apr 2025. 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-95hm-pr6q-298w in the wild and no public exploit code.

Affected packages and fixed versions:
- fast-able (crates.io): affected all versions; fixed in 1.13.7
- fast-able (crates.io): affected all versions; fixed in 1.13.7
- fast-able (crates.io): affected from 0.0.0-0; fixed in 1.13.7

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-95hm-pr6q-298w/ (Markdown: https://insights.sbomify.com/GHSA-95hm-pr6q-298w/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/GHSA-95hm-pr6q-298w

---
From sbomify Insights: https://insights.sbomify.com/GHSA-95hm-pr6q-298w/
Summaries are generated and may contain mistakes; the official description above is the record.