CVE-2017-16026
MEDIUMCVE-2017-16026 is a medium-severity (CVSS 5.9) CWE-201 vulnerability in request. 3 public exploit references exist, so weaponization risk is real. O3 Security confirms whether CVE-2017-16026 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
Remote Memory Exposure in request
Blast Radius
Weekly download volume for affected packages — a proxy for how broadly this vulnerability is deployed.
requestnpmDescription
Request is an http client. If a request is made using multipart, and the body type is a number, then the specified number of non-zero memory is passed in the body. This affects Request >=2.2.6 <2.47.0 || >2.51.0 <=2.67.0.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | request | ≥ 2.49.0&&< 2.68.0 | 2.68.0 |
| 📦npm | request | ≥ 2.2.6&&< 2.68.0 | 2.68.0 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for request. 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 request to 2.68.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2017-16026 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-2017-16026 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-2017-16026. 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-2017-16026 in your dependencies?
O3 detects CVE-2017-16026 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.