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CRITICAL severity

GHSA-72mh-269x-7mh5

CRITICALFix: mjwwit/node-XMLHttpRequest@bf53329

GHSA-72mh-269x-7mh5 is a critical-severity (CVSS 9.4) CWE-295 vulnerability in xmlhttprequest-ssl. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-72mh-269x-7mh5 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Improper Certificate Validation in xmlhttprequest-ssl

Also known asCVE-2021-31597
Published
May 24, 2021
Updated
Nov 8, 2023
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Nov 8, 2023 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

91other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
xmlhttprequest-sslnpm
14.4Mdownloads / week

Description

The xmlhttprequest-ssl package before 1.6.1 for Node.js disables SSL certificate validation by default, because rejectUnauthorized (when the property exists but is undefined) is considered to be false within the https.request function of Node.js. In other words, no certificate is ever rejected.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmxmlhttprequest-sslall versions1.6.1
Exploits & PoCs
1

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 dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for xmlhttprequest-ssl. 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.

  2. Fix

    Update xmlhttprequest-ssl to 1.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-72mh-269x-7mh5 is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-72mh-269x-7mh5 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 GHSA-72mh-269x-7mh5. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The xmlhttprequest-ssl package before 1.6.1 for Node.js disables SSL certificate validation by default, because rejectUnauthorized (when the property exists but is undefined) is considered to be false within the https.request function of Node.js. In other words, no certificate is ever rejected.
O3 Security · Impact-Aware SCA

Is GHSA-72mh-269x-7mh5 in your dependencies?

O3 detects GHSA-72mh-269x-7mh5 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-72mh-269x-7mh5: Improper Certificate… | O3 Security