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CRITICAL severity

CVE-2020-7706

CRITICALFix: mattinsler/connie-lang@ef376d4

CVE-2020-7706 is a critical-severity (CVSS 9.8) CWE-1321 vulnerability in connie-lang. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether CVE-2020-7706 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Prototype Pollution in connie-lang

Also known asGHSA-8vv3-jxm8-f4vfSNYK-JS-CONNIELANG-598853
Published
Aug 18, 2020
Updated
Jul 9, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Jul 9, 2026 · 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.

1other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
connie-langnpm
14downloads / week

Description

The package connie-lang before 0.1.1 are vulnerable to Prototype Pollution in the configuration language library used by connie.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmconnie-langall versions0.1.1
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 connie-lang. 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 connie-lang to 0.1.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-7706 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 CVE-2020-7706 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-2020-7706. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

The package connie-lang before 0.1.1 are vulnerable to Prototype Pollution in the configuration language library used by connie.
O3 Security · Impact-Aware SCA

Is CVE-2020-7706 in your dependencies?

O3 detects CVE-2020-7706 across npm dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.