APPLICATION SECURITY TESTING
Web application security testing, straight from your code
Nurbak is application security testing (AppSec) for teams that ship from GitHub. Connect a repo and get exploitable vulnerabilities with file and line, vulnerable dependencies, leaked secrets and misconfigurations, ranked in a 0 to 100 security score. Each fix arrives as a pull request.
Create account and connect GitHubWe never store your code. We only write when you ask for a fix PR.
The whole AppSec stack in one scan
SAST, SCA, secrets, CI and IaC checks and a white-box pentest in one report, instead of five tools and five dashboards.
Exploitable issues, not noise
Our own AI model reasons about how data flows through your app, so it reports IDOR, broken auth or SSRF with file and line, in plain language.
Not sent to OpenAI or Anthropic
Analysis runs on Nurbak's own self-hosted model on ephemeral infrastructure, with a hash-chained audit trail you can verify.
Fixes as pull requests
One click opens a PR with the fix and a security regression test, so the bug stays fixed.
What web application security testing with Nurbak covers
AI SAST on your own code
SQL injection, XSS, SSRF, IDOR, broken authentication, JWT, CORS, CSRF, SSTI and XXE, found by reasoning over the code. More on AI SAST.
Software composition analysis
Known CVEs in your dependencies, checked against the OSV database. More on SCA.
Secrets, including git history
Hardcoded API keys, tokens and passwords, even in old commits you thought were gone. Secret scanner.
CI and infrastructure as code
Misconfigurations in GitHub Actions workflows, Dockerfiles, Terraform and Kubernetes manifests.
White-box pentest of the source
An AI pentest that reads the source like an attacker with full access and tries to chain findings into real attacks. AI pentest.
Critical code without tests
Flags security-sensitive code that has no tests, so you know where a regression could slip through.
How it works
Create an account and connect GitHub. Public and private repos both work.
Pick a repo. Nurbak's own model analyzes it on ephemeral infrastructure.
Get a 0 to 100 security score and findings with file, line and a plain-language explanation.
Open a pull request with the fix and a regression test in one click.
On a plan, the repo is rescanned daily, so new code gets tested too.
Application security testing FAQ
What is web application security testing?
It is the practice of finding security flaws in a web application before attackers do. It usually combines static analysis of the source code (SAST), analysis of third-party dependencies (SCA), secret detection and dynamic testing of the running app (DAST) or a pentest. Nurbak covers everything you can test from the code. We compare the approaches in SAST vs DAST.
What are the best web application security testing tools?
It depends on your stack and your team. Most teams combine a SAST, an SCA and a secret scanner, plus a periodic pentest. Nurbak bundles those code-level checks in one scan. Our SonarQube alternative and Snyk alternative pages compare it with two popular tools.
What does AppSec mean?
AppSec (application security) is the set of practices and tools that keep an application's code, dependencies and configuration free of exploitable vulnerabilities across the development lifecycle. Application security testing is the part that finds the problems.
How is a white-box pentest different from a scan?
A classic scanner lists pattern matches. A pentest looks for vulnerabilities an attacker could actually exploit and tries to chain them. Nurbak's white-box pentest works on the source code, so it sees authorization logic and data flows that are invisible from the outside.
Which vulnerabilities does Nurbak find?
SQL injection, IDOR, SSRF, XSS, authentication and JWT flaws, CORS and CSRF issues, SSTI, XXE and hardcoded secrets, plus vulnerable dependencies, CI and IaC misconfigurations and secrets in git history. Our OWASP Top 10 2025 guide explains the main categories.
Is my code sent to a third-party AI?
The analysis runs on Nurbak's own self-hosted model, so your code is not sent to OpenAI or Anthropic to be analyzed. The infrastructure is ephemeral and every step is recorded in a hash-chained audit trail. Only if you ask for a fix pull request and give explicit consent is the fix generated with Claude.
How much does it cost?
The first scan is free and shows the 3 most important findings in full, plus 1 free fix PR. Plans are USD 79 per month for 1 repo and USD 199 per month for up to 5 repos, with daily scans. Above 5 repos there is an Enterprise plan. We charge per repo, not per developer. See pricing.
Test your web application's security today
Connect GitHub and get your security score and your 3 most important findings free.
Scan my repo