Semgrep’s new AI-powered detection combines the precision of static analysis with the contextual reasoning of large language models (LLMs). Together, they uncover logic issues—like Insecure Direct Object References (IDORs) and Broken Authorization—that traditional tools and workflows often miss.
Why it matters
Most security teams already have coverage for SQL injection, XSS, SSRF, and similar classes of bugs. Semgrep reliably finds those before they ever hit production.
But in today’s bug bounty programs and penetration tests, logic flaws account for increasingly high percentages of payouts. These are vulnerabilities caused not by missing sanitization, but by broken rules in how applications handle identity, permissions, and access. They’re hard to detect with static analysis alone, and most AppSec teams are flying blind. Semgrep AI changes that.
How it works
LLMs excel at understanding context in code: variable names, class structures, function intent, and even comments. By pairing that reasoning power with Semgrep’s structured scanning, we can:
Enumerate key attack surfaces (like routes or controllers).
Check for missing safeguards (authentication, role checks, permissions).
Flag potential logic gaps for review before attackers ever find them.
This hybrid approach means AI isn’t guessing in the dark—it’s guided by Semgrep’s scanning engine to systematically find real issues.
Early results
Our research and customer alpha programs show that:
Teams in the alpha consistently found new IDOR issues worth investigating.
Against standalone LLMs, Semgrep AI achieved nearly 2× higher recall on benchmarks for IDOR detection.
This translates to fewer blind spots, fewer late-stage findings in bug bounties or pen tests, and stronger overall security posture.
Why customers choose it
Logic flaws caught before production: Catch bugs earlier in the SLDC before they become exploitable.
Stay ahead of attackers: Use the same AI reasoning techniques hackers are beginning to exploit—paired with Semgrep’s proven static analysis.
Reduce bug bounty spend: Prevent costly payouts for IDOR and Broken Auth.
Build trust with developers: Deliver accurate, explainable findings—without the noise of false positives from standalone AI tools.
Get started
We’re opening up our research preview to select customers. If you want to explore how Semgrep + AI can help your team eliminate logic flaws at scale, join the waitlist here:
To get on the waitlist, sign up here: https://semgrep.dev/contact/product-join-llm-detection-beta/
