# CVE-2025-25285: @octokit/endpoint has a Regular Expression in parse that Leads to ReDoS Vulnerability Due to Catastrophic Backtracking

> Attackers can cause high CPU utilization and application hangs in the @octokit/endpoint library by triggering a ReDoS vulnerability via crafted parameters.

- **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:** 14 Feb 2025
- **Updated:** 14 Feb 2025
- **Also known as:** CLEANSTART-2026-XE96590, GHSA-x4c5-c7rf-jjgv

## What is CVE-2025-25285?

CVE-2025-25285 is a medium-severity denial of service vulnerability in octokit endpoint.js, published on 14 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

@octokit/endpoint turns REST API endpoints into generic request options. Starting in version 4.1.0 and prior to version 10.1.3, by crafting specific `options` parameters, the `endpoint.parse(options)` call can be triggered, leading to a regular expression denial-of-service (ReDoS) attack. This causes the program to hang and results in high CPU utilization. The issue occurs in the `parse` function within the `parse.ts` file of the npm package `@octokit/endpoint`. Version 10.1.3 contains a patch for the issue.

Weakness: CWE-1333 (Inefficient Regular Expression Complexity)

## Which versions are affected by CVE-2025-25285?

4 open source packages ship an affected version, including @octokit/endpoint.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `@octokit/endpoint` | npm | From 10.0.0 | 10.1.3 |
| `@octokit/endpoint` | npm | From 10.0.0 | 10.1.3 |
| `@octokit/endpoint` | npm | From 9.0.5 | 9.0.6 |
| `@octokit/endpoint` | npm | From 9.0.5 | 9.0.6 |

## How do I fix CVE-2025-25285?

Upgrade @octokit/endpoint to a fixed version for your release line: 10.1.3 or 9.0.6.

## Is CVE-2025-25285 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-25285 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-25285 and fix it if it is affected.

What it is: CVE-2025-25285 is a medium-severity denial of service vulnerability in octokit endpoint.js, published on 14 Feb 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-25285 exists.

Affected packages and fixed versions:
- @octokit/endpoint (npm): affected from 10.0.0; fixed in 10.1.3
- @octokit/endpoint (npm): affected from 10.0.0; fixed in 10.1.3
- @octokit/endpoint (npm): affected from 9.0.5; fixed in 9.0.6
- @octokit/endpoint (npm): affected from 9.0.5; fixed in 9.0.6

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-2025-25285/ (Markdown: https://insights.sbomify.com/CVE-2025-25285/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-25285
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-25285
- OSV: https://osv.dev/vulnerability/CVE-2025-25285

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-25285/
Summaries are generated and may contain mistakes; the official description above is the record.