Security Scan of Cursor AI Composer 2.5 with Snyk

Name: Security Scan of Cursor AI Composer 2.5 with Snyk
Uploaded: 2026-07-13T13:58:43-04:00
Duration: 1 min 57 s
Description: Watch the full video here: https://youtu.be/G78kbcDdVfE Use Snyk for free to find and fix security issues in your applications today! https://snyk.co/ugLYn ✍️ Resources ✍️ https://cursor.com/blog/composer-2-5 https://github.com/clarkio/ai-code-security...

Snyk

07/13/2026

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Transcript

And to do that, we're gonna use Snyk to see what security issues there might be with the project that Composer 2.5 made for us here. All right, so I have the Snyk extension set up, installed, logged into my account, and I scanned the project, and we can see we have quite a bit of security issues that came up, both in the open source security, the dependencies that we have for the project here that Composer 2.5 chose, and the code that it wrote. So looking at these issues, we have three high and four medium severity issues, all based on this tar package that it chose, and that's being introduced via the bcrypt package, our direct dependency. One of the fixes is upgrading to bcrypt 6.0.0 versus the 5.1.1 that we're using here. That has the fixed version for that. We can go ahead and fix that and get that remediated. We have a symlink attack, also introduced via there, and a couple other ones. I'm not gonna bore you with all the details, but you get the idea. It didn't really choose the best versions of the packages, not necessarily bad packages, but versions of packages that have known vulnerabilities in them. In addition to that, we'll take a look at the code security, and we can see, okay, allocation of resources without limits. I've mentioned this in the past videos. I'll call it out again here in case you've missed that. This type of thing is for rate limiting, and I take this a little bit with a grain of salt whenever I see it come up as an issue, because I tend to deploy these applications in environments where there is rate limiting on the outskirts of it, not directly written in the code of my application. That's what I choose to do. You may choose differently, but that's just a heads up with that, and so take this with a grain of salt. It's not a huge issue, so I don't count it as a knock against Cursor Composer 2.5 in this situation. However, the open source dependencies are not a good look there, so that's a bit of a knock as well. Thank you.

TL;DR

Cursor AI Composer 2.5 generated a project with three high and four medium severity vulnerabilities, all traced to the tar package introduced via the bcrypt dependency.
The primary fix is upgrading bcrypt from version 5.1.1 to 6.0.0, which resolves the vulnerable transitive dependency and associated symlink attack risk.
A rate-limiting code issue was flagged but the presenter considers it low-priority when infrastructure-level rate limiting is already in place.

Summary

This short-form clip demonstrates how Snyk's IDE extension can be used to evaluate the security quality of code generated by Cursor AI's Composer 2.5. After scanning a project that Composer 2.5 produced, the presenter identifies a meaningful set of vulnerabilities — three high-severity and four medium-severity issues — all traced back to the tar package, which is introduced as a transitive dependency through the bcrypt package. The recommended fix is straightforward: upgrading bcrypt from version 5.1.1 to 6.0.0, which contains the patched version of the vulnerable dependency. A symlink attack vulnerability is also flagged among the open-source issues. On the code security side, Snyk surfaces an 'allocation of resources without limits' finding related to rate limiting. The presenter contextualizes this finding, noting that he personally handles rate limiting at the infrastructure layer rather than in application code, and therefore does not consider it a significant knock against Composer 2.5. The open-source dependency selection, however, is called out as a genuine concern — AI-generated code chose package versions with known vulnerabilities rather than the latest secure releases. The key takeaway is that AI coding assistants like Cursor Composer 2.5 can introduce real security debt through poor dependency version selection, and tools like Snyk are essential for catching these issues before they reach production.

Chapters

0:00 - Introduction & Snyk Setup
0:25 - Open Source Dependency Vulnerabilities
1:10 - Code Security Findings & Context
1:44 - Verdict on Composer 2.5

Key Quotes

0:13 "... we can see we have quite a bit of security issues that came up, both in the open source security, the dependencies that we have for the project here that Composer 2.5 chose, and the code that it wrote."
1:01 "It didn't really choose the best versions of the packages, not necessarily bad packages, but versions of packages that have known vulnerabilities in them."
1:23 "I take this a little bit with a grain of salt whenever I see it come up as an issue, because I tend to deploy these applications in environments where there is rate limiting on the outskirts of it, not directly written in the code of my application."

FAQ

What vulnerabilities did Snyk find in the Cursor Composer 2.5 project?

Snyk identified three high-severity and four medium-severity issues, all originating from the tar package introduced as a transitive dependency through bcrypt 5.1.1. Issues include a symlink attack and other known CVEs. Upgrading to bcrypt 6.0.0 resolves them.

Should I be concerned about the rate-limiting finding in AI-generated code?

It depends on your deployment environment. The presenter notes that if rate limiting is handled at the infrastructure level (e.g., via an API gateway or reverse proxy), the in-code finding is lower priority. If your application handles rate limiting itself, it warrants attention.

Categories:

» Cybersecurity » Application Security
» Data Protection

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