Open source Cobalt Strike alternatives
Every project in the catalog is MIT, Apache or BSD licensed. 0 projects explicitly describe themselves as a Cobalt Strike alternative; 39 more are in the category where Cobalt Strike is a typical product.
Open source projects in the same category: Security & Penetration Testing
Category-level information: these projects are the same kind of software as Cobalt Strike; they have not claimed to be a one-to-one replacement.
swisskyrepo · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can access ready payload lists to test vulnerabilities in web applications.
- During penetration tests, you can use technical methods to bypass firewalls or filters.
- You can get the necessary file sets to perform automated tests with the Burp Intruder tool.
Verified against README · Oct 26, 2026 · source
strix
100usestrix · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can identify and verify critical security vulnerabilities in your applications.
- By integrating GitHub Actions and CI/CD pipelines, you can prevent insecure code from entering production.
- You can speed up security testing by creating automated patch recommendations and compatibility reports.
- • High number of open issues (534)
- • NeutralHacker News
AMD Strix Halo RDMA Cluster Setup Guide
“Are they fairly reasonable performance from your experience? I'm about to move house and one of the things I want is better local AI. Ideally running a variety of smaller models at the same time, but occasionally one larger one. 128GB unified is pretty appealing, but for the…”
- ↑ PositiveHacker News
AMD Strix Halo RDMA Cluster Setup Guide
“Yes but it depends what you want. I didn't want to spend 8k (or now 11k) for a video card that I couldn't run without turning my home office into a boiler room and pay through the nose in electricity. I wanted a laptop that could run some medium sized LLMs locally and experiment…”
Verified against README · Oct 26, 2026 · source
rapid7 · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can use the msfconsole interface to manage infiltration testing processes.
- You can use API documentation to develop your own modules.
- In the msfconsole interface, you select modules and set their options to run authorized infiltration tests.
- • High number of open issues (626)
- • GPL license — usage restricted
Verified against README · Oct 26, 2026 · source
Trivy
100aquasecurity · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can scan container images and security holes in file systems.
- You can detect configuration errors with hidden information in git repositories and virtual machine images.
- By scanning Kubernetes environments, you can control software dependencies and security issues.
- • NeutralHacker News
Trivy ecosystem supply chain temporarily compromised
“To be clear, this is a supply chain attack on everyone that uses Trivy, not a supply chain attack on Trivy. It was a direct attack on Trivy, exploiting components that Aqua had full control and responsibility for. The term “supply chain attack” has a connotation of “ it’s not…”
- • NeutralHacker News
Trivy ecosystem supply chain temporarily compromised
“This attack seems predicated on a prior security incident ( ) at Trivy where they failed to successfully remediate and contain the damage. I think at this time, Trivy should’ve undertaken a full reassessment of risks and clearly isolated credentials and reduced risk…”
Verified against README · Oct 26, 2026 · source
gchq · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- İşlemleri tarif listesine sürükleyip sıralayarak kodlama, şifreleme ve sıkıştırma adımlarını zincirleyebilirsin
- 2 GB'a kadar dosyaları doğrudan tarayıcıya yükleyip işleyebilirsin
- Girdi veya tarif değiştikçe çıktıyı otomatik ('Auto Bake') üretebilirsin
- • High number of open issues (600)
- • NeutralHacker News
CyberChef – A Cyber Swiss Army Knife
“> Making all of these available and chaining all of these together wouldn't be a simple script. All transformations are readily available in the standard library of a language like Python or Ruby. And note that this CyberChef tool doesn't chain them together either. The user…”
- • NeutralHacker News
CyberChef – The Cyber Swiss Army Knife
“protip: Open the JS console (F12 / inspect) and start the CyberChef challenges! 43 6f 6e 67 72 61 74 75 6c 61 74 69 6f 6e 73 2c 20 79 6f 75 20 68 61 76 65 20 63 6f 6d 70 6c 65 74 65 64 20 43 79 62 65 72 43 68 65 66 20 63 68 61 6c 6c 65 6e 67 65 20 23 31 21 0a 0a 54 68 69 73 20…”
Verified against README · Oct 30, 2026 · source
pentagi
95vxcontrol · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- With fully autonomous A.I. agents, you run the infiltration test steps automatically.
- You perform infiltration testing operations in a secure and isolated Docker environment.
- With a Neo4j-based information graph and smart memory system, you store research results.
Verified against README · Oct 26, 2026 · source
Nuclei
100projectdiscovery · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can create your own vulnerability detection scenarios using templates in the YAML format.
- You can automate vulnerabilities and regression tests by integrating them into the CI/CD processes.
- You can manage your findings by connecting with platforms like Jira, Splunk, GitHub and GitLab.
- • NeutralGitHub Issue
XSS Context Analyzer
“XSS Context Analyzer”
- • NeutralGitHub Issue
[FEATURE] Add honeypot detection to nuclei
“### Describe your feature request Many hosts on shodan have all the matchers from nuclei in order to fool scanner (show each vuln as matching). we should have some sort of detection to match such scenarios and ignore their matches (at least inform user) ### Describe the use case…”
Verified against README · Oct 26, 2026 · source
Gitleaks
100gitleaks · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You search for the password or API key stored in Git repositories and files.
- You can scan your warehouse by adding a pre-commit hook.
- Using Gitleaks-Action, you include scanning operations in your CI/CD processes.
- • High number of open issues (522)
- • NeutralHacker News
I wrote Gitleaks, now I'm maintaining Betterleaks
“8 years ago I wrote the first lines of Gitleaks and have been hooked on finding leaked secrets since. Gitleaks grew from a small project to a name recognized by developers and security folks. It sucks but I gotta take a step back from the project. I'll cut security releases but…”
Verified against README · Oct 26, 2026 · source
h4cker
85The-Art-of-Hacking · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can review study roadmaps and preparatory materials for cyber security certification exams.
- You can set up your own cyber security lab for offensive and defensive security applications.
- You can access technical tools and references in different areas, such as AI security, application security, and network security.
- • No published release
- • NeutralGitHub Issue
Failed to start docker.service
“I used the curl script to install websploit. Went through most of it as planned. When it was done I went to do the docker start command and get Failed to start docker.service : Unit docker.service not found.”
Verified against README · Oct 26, 2026 · source
smicallef · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- IP, alan adı, alt alan adı, e-posta, telefon veya kullanıcı adı gibi hedefler için OSINT taraması başlatabilirsin
- 200'den fazla modülün birbirine veri aktardığı taramalarla saldırı yüzeyini haritalayabilirsin
- 37 hazır kuraldan oluşan YAML tabanlı korelasyon motoruyla bulguları ilişkilendirebilirsin
- • NeutralHacker News
SpiderFoot: OSINT collection and reconnaissance tool
“It is kind of an amalgamation of tools. Install it, sign up for the dozens and dozens of different external services it queries, configure those API's in SpiderFoot. Then fire away. It is really good, but some of the better visualizations, sorting options, reporting and diffing…”
- • NeutralHacker News
SpiderFoot: OSINT collection and reconnaissance tool
“Thanks.. it’s been a ton of work over years, with valuable contributions from others as well, so I’m really glad to see it’s appreciated. If there’s however any pain point you experience with SpiderFoot, I’d be happy to hear it.”
Verified against README · Oct 30, 2026 · source
Katana
100projectdiscovery · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can browse websites in standard or headless mode
- You can make endpoint discovery by parsing JavaScript files
- You can scan by enabling the automatic form filling feature
- ↓ NegativeHacker News
Katana – Modern Swift framework for creating iOS apps, inspired by React/Redux
“You have a lot of comments on this article, with some good questions and good points. However, I think there's a theme in some of them: > Well-disciplined iOS developers can keep this under control. Well-disciplined iOS developers with good development practices were also able…”
- ↑ PositiveHacker News
Katana – Modern Swift framework for creating iOS apps, inspired by React/Redux
“I'd argue that "massive view controllers" aren't "normal", and if you find yourself in situations with massive view controllers, those are likely excellent candidates to refactor into smaller view controllers that can be composed together using something like iOS view controller…”
FFUF
92ffuf · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can make a typical directory discovery on the target website.
- You can perform virtual server (vhost) detection without the need for DNS recordings.
- You can apply fuzzing operation on the GET parameters.
- • NeutralGitHub Issue
recursion not working properly
“Hello, even with -recursion enabled, and -recursion-depth of 3 ... and im using FUZZ at the end of both the URL and the wordlist ... I am able to locate directories but new jobs are not added for the recursion process. So - i have to re-run ffuf and manually scan those new…”
- ↓ NegativeGitHub Issue
How to get back the 1 line verbosity like v1.5
“Now it takes 3 lines for 1 result which to me is quite frustrating 
Verified against README · Oct 25, 2026 · source
Amass
100owasp-amass · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You map the attack surface of the target network with open-source information gathering techniques.
- Using active reconnaissance methods, you identify the institution's external assets.
- You use it in security analysis by creating an inventory of assets on the network.
subfinder
100projectdiscovery · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- Using online passive resources, you perform subdomain discovery for target websites.
- With different output formats and stdin/stdout support, you integrate the tool into existing workflows and command line processes.
- By selecting or excluding certain resources, you run customized subdomain scans.
- ↓ NegativeGitHub Issue
[Issue] The `rl,rls` options are not supported
“**Describe the bug** I noticed that these options weren't working when testing with the sitedossier source, for example. I suspected that it was blocking my VPN's IP. I thought it was coming from him, but now I suspect the number of requests/min is too high. On an old branch, I…”
- ↓ NegativeGitHub Issue
Docker configuration persistence errors
“## What's the problem (or question)? Config file error while running the binary even config file placed under `$GOPATH/bin` ## Do you have an idea for a solution? Not sure! ## How can we reproduce the issue? 1. Run the `subfinder` from anywhere in root path ## What are the…”
google · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You can scan for known vulnerabilities in the dependency list of your projects.
- You can detect container images and Linux operating system packages by scanning them open.
- You can get package version upgrade suggestions to resolve Güvenlik vulnerabilities.
httpx
100projectdiscovery · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You scan target lists in the Host, URL or CIDR format with configurable flags.
- You query a large number of parameters, such as HTTP response headers, TLS certificates, content length, and web server information.
- Using HTTPS HTTP automatic switching and error management features, you detect active web services on the network.
- • NeutralHacker News
Httpx: A next-generation HTTP client for Python
“We don’t have any third party packages for that authentication style yet, but we do have an API for supporting custom auth flows... If you’re interested in trying httpx you’d be very welcome to raise an issue an issue related to NTLM/Negotiate authentication - it’d be really…”
- • NeutralHacker News
Httpx: A next-generation HTTP client for Python
“Maybe support for trio and HTTP/2? Also I ran into hard-to-debug issues when there were lots of requests in the past. I'll check again with httpx soon.”
reconftw
80six2dez · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- You do extensive subdomain search with passive and active methods.
- You automatically detect web vulnerabilities such as XSS, SSRF and SQLi.
- You conduct OSINT research for email, metadata, and API leaks.
- • NeutralGitHub Issue
Issue While running the Web Server
“Hi, I am facing issue while starting the web server could you please let me know what is the issue and how to resolve Error Description: Starting web server... ./reconftw.sh: line 2831: .venv/bin/activate: No such file or directory Web server started! After i open the link it is…”
- • NeutralGitHub Issue
Web Server Does Not Start
“After running the following command, I am unable to visit web interface: ./reconftw.sh --web-server start Tried options 2 and 3 for installation but unable visit web interface on port 8001 Starting web server... Web server started! Service Address: I have installed this…”
cve
65trickest · Security & Penetration Testing
Common commercial products in this category: Burp Suite Professional, Nessus, Cobalt Strike
- By watching the warehouse, you get a notification when the new PoC becomes public.
- By searching for specific products and versions, you find all publicly available abuses related to them.
- You find and test a suitable PoC by navigating through the warehouse.
- • No published release
- • NeutralHacker News
CVE program faces swift end after DHS fails to renew contract [updated]
“What I’m doing is applying basic critical thinking instead of building a conspiracy theory on vibes. Yes, DOGE is slashing budgets. Yes, CISA and MITRE took hits. That’s all true. And still doesn’t prove DOGE made the call to let the CVE contract lapse and then magically reverse…”
- • NeutralHacker News
CVE program faces swift end after DHS fails to renew contract [updated]
“> If this was a top-down DOGE directive, why the immediate reversal? Did DOGE suddenly change its mind? From the man himself: “We will make mistakes. We won’t be perfect. But when we make a mistake, we’ll fix it very quickly,” Musk, a Trump-appointed special government employee,…”