Stop Chasing Ghosts. Fix the CVEs That Can Actually Reach Your Code.
Patchlynx analyzes your call graph on every PR — surfacing only the dependencies where a real execution path connects your code to the vulnerability.
Patchlynx v0.8.2 — Reachability Analysis
■ [email protected] CVE-2021-23337 (MEDIUM)
✔ NOT REACHABLE — no call path to prototype pollution
lodash.merge() not imported in your codebase
■ [email protected] CVE-2024-38374 (HIGH)
✔ NOT REACHABLE — dependency present, never invoked
0 call paths from entry points
■ [email protected] CVE-2024-52190 (CRITICAL)
✖ REACHABLE via:
server.js:142 → router.post() → parser.parse()
Patch available: [email protected]
1 reachable CVE · 2 not reachable · 2 auto-dismissedMost CVE alerts are noise. Developers know it. That's the problem.
of CVE advisories in a typical Node.js project have no reachable call path from any production entry point
estimated time AppSec teams spend per week triaging dependency alerts that will never fire in production code
is how many critical decisions get made on a security alert that fired 200 times this week. False positives don't just waste time — they train developers to ignore the scanner entirely.
How Patchlynx finds what's actually exploitable
Dependency graph from your lockfile
We parse your lockfile (package-lock.json, yarn.lock, Pipfile.lock, Cargo.lock, go.sum) to build the full dependency tree including transitive packages.
Call graph traced from your entry points
Static analysis traces all execution paths starting from your application's entry points — mapping every function call across your code and dependencies.
Intersection: only reachable CVEs surface
Only CVEs where a real call path exists from your code to the vulnerable function are reported. Everything else is automatically dismissed with evidence.
Reachability analysis at every merge gate
PR-Level Scanning
Checks every pull request against the lockfile diff before merge. Vulnerabilities introduced by a specific dependency change are caught at the commit that introduces them — not in a weekly batch scan.
Call Chain Evidence
Every finding includes the exact call path: file, line, function — all the way from your entry point to the vulnerable function in the dependency. Not "this package has CVE-2024-XXXX." The full trace.
CI/CD Native
GitHub Actions, GitLab CI, Bitbucket Pipelines, CircleCI, Jenkins. One YAML block in your existing pipeline. No separate agent to manage, no config drift, no additional build time beyond the analysis itself.
Fix in the PR, Not in a Dashboard
Results post directly as inline PR comments with the patch version suggestion. Developers act on it in the same context where they made the change. No dashboard login, no ticket, no context switch.
What developers actually see in their pull request
This is a real Patchlynx check run output. Three findings — one critical action required, two auto-dismissed.
Patchlynx Reachability Report — github.com/acme-corp/api-service#1247
★ CRITICAL REACHABLE
[email protected] CVE-2024-61012 (CVSS 9.8)
Remote code execution via prototype pollution in serialize()
Call chain:
src/worker.ts:89 → JobQueue.enqueue()
→ serialize-javascript/index.js:204 → serialize()
→ vulnerable: __proto__ assignment in options handling
Fix: upgrade to [email protected]
✔ HIGH NOT REACHABLE
[email protected] CVE-2023-26136 (CVSS 7.1)
Prototype pollution in Cookie.parse()
Dismissed: 0 call paths reach Cookie.parse() from your entry points
tough-cookie imported by test-runner only (devDependencies path)
◆ MODERATE REACHABLE
[email protected] CVE-2024-29040 (CVSS 4.3)
ReDoS vulnerability in email validation regex
Call chain:
src/routes/auth.ts:34 → validateRequest()
→ express-validator/src/chain/validators.js:88 → isEmail()
Fix: upgrade to [email protected]
2 reachable CVEs require action · 1 auto-dismissed (not reachable)
Signal over noise, from day one
"We were getting 200+ CVE alerts a week from our advisory-only scanner. Half the team had muted the Slack channel. After moving to reachability-based scanning, we're down to 12 alerts that actually correspond to real execution paths. Developers started acting on them again — because they trust them."
"The call chain makes all the difference when you're trying to convince a developer to act. Instead of 'package X has CVE-2024-XXXX, please upgrade', we can show the exact execution path from their code to the vulnerable function. They understand it in 30 seconds. The PR gets updated the same day."
Start free. Pay when you grow.
Connect up to 3 repos and see real reachability verdicts on your actual codebase. No synthetic demo environment — your code, your CVEs.
- Up to 3 repositories
- Unlimited contributors
- Core reachability engine
- PR comments with call chains
- GitHub, GitLab, Bitbucket
For engineering teams shipping frequently across multiple repos. Unlimited scans, all five supported languages, and fix-PR generation to close reachable CVEs without manual patching.
- Unlimited repositories
- Priority analysis queue
- Slack notifications
- Fix PR suggestions
- All CI/CD integrations
For organizations where security is a first-class engineering concern: SAML SSO, audit logs, custom ignore policies with justification tracking, and SLA-backed support.
- Everything in Pro
- SSO (SAML, OIDC)
- Audit logs
- Custom ignore policies
- Priority support
Start finding what's actually exploitable.
Free for up to 3 repos. No credit card required.
Get started freeTakes about 4 minutes to connect your first repo.