# CVE-2024-45813: ReDoS vulnerability in multiparametric routes in find-my-way

> A ReDoS vulnerability in find-my-way allows attackers to cause denial of service via specific route patterns, requiring an upgrade to patched versions.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 18 Sep 2024
- **Updated:** 18 Sep 2024
- **Also known as:** GHSA-rrr8-f88r-h8q6

## What is CVE-2024-45813?

CVE-2024-45813 is a medium-severity denial of service vulnerability in delvedor find-my-way, published on 18 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

find-my-way is a fast, open source HTTP router, internally using a Radix Tree (aka compact Prefix Tree), supports route params, wildcards, and it's framework independent. A bad regular expression is generated any time one has two parameters within a single segment, when adding a `-` at the end, like `/:a-:b-`. This may cause a denial of service in some instances. Users are advised to update to find-my-way v8.2.2 or v9.0.1. or subsequent versions. There are no known workarounds for this issue.

Weakness: CWE-1333 (Inefficient Regular Expression Complexity)

## Which versions are affected by CVE-2024-45813?

4 open source packages ship an affected version, including find-my-way.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `find-my-way` | npm | From 5.5.0 | 8.2.2 |
| `find-my-way` | npm | From 5.5.0 | 8.2.2 |
| `find-my-way` | npm | From 9.0.0 | 9.0.1 |
| `find-my-way` | npm | From 9.0.0 | 9.0.1 |

## How do I fix CVE-2024-45813?

Upgrade find-my-way to a fixed version for your release line: 8.2.2 or 9.0.1.

## Is CVE-2024-45813 being exploited?

There is no known exploitation of CVE-2024-45813 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-45813 and fix it if it is affected.

What it is: CVE-2024-45813 is a medium-severity denial of service vulnerability in delvedor find-my-way, published on 18 Sep 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2024-45813 in the wild and no public exploit code.

Affected packages and fixed versions:
- find-my-way (npm): affected from 5.5.0; fixed in 8.2.2
- find-my-way (npm): affected from 5.5.0; fixed in 8.2.2
- find-my-way (npm): affected from 9.0.0; fixed in 9.0.1
- find-my-way (npm): affected from 9.0.0; fixed in 9.0.1

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/CVE-2024-45813/ (Markdown: https://insights.sbomify.com/CVE-2024-45813/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-45813
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-45813
- OSV: https://osv.dev/vulnerability/CVE-2024-45813

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-45813/
Summaries are generated and may contain mistakes; the official description above is the record.