CVE-2017-1000452
HIGHCVE-2017-1000452 is a high-severity (CVSS 7.5) CWE-91 vulnerability in samlify. O3 Security confirms whether CVE-2017-1000452 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Samlify vulnerable to Authentication Bypass by allowing tokens to be reused with different usernames
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
samlifynpmDescription
An XML Signature Wrapping vulnerability exists in Samlify 2.2.0 and earlier, and in predecessor Express-saml2 which could allow attackers to impersonate arbitrary users.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | samlify | all versions | 2.4.0-rc5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for samlify. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.
Fix
Update samlify to 2.4.0-rc5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-1000452 is resolved across your whole dependency graph.
Workarounds
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.
How O3 protects you
O3 pinpoints whether CVE-2017-1000452 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.
Tailored to CVE-2017-1000452. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is CVE-2017-1000452 in your dependencies?
O3 detects CVE-2017-1000452 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.