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CRITICAL severity

CVE-2020-7701 — madlib-object-utils

CRITICALFix: Qwerios/madlib-object-utils@2a8d5be

CVE-2020-7701 is a critical-severity (CVSS 9.8) CWE-1321 vulnerability in madlib-object-utils. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for madlib-object-utils — see the affected versions and patch details below.

Prototype Pollution in madlib-object-utils

Also known asGHSA-jvf5-q4h5-2jmjSNYK-JS-MADLIBOBJECTUTILS-598676
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 30, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
2.0%probability of exploitation in next 30 days
Lower Risk-0.06%
Lower risk than most CVEs81th percentile — riskier than 81% of all scored CVEsHighest risk
0.60%1.25%1.90%2.56%1.1%2.0%Apr 26Aug 26Oct 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, a proxy for how much of the ecosystem is exposed.

madlib-object-utilsnpm
99downloads / week

Description

madlib-object-utils before 0.1.7 is vulnerable to Prototype Pollution via setValue.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmmadlib-object-utilsall versions0.1.7npm install madlib-object-utils@0.1.7

Affected Products

1 product · 1 configurations
Application
madlib-object-utilsspringtree
< 0.1.7
range
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.

madlib-object-utils before 0.1.7 is vulnerable to Prototype Pollution vi…

snyk.ioNVDJul 2021

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for madlib-object-utils, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update madlib-object-utils to 0.1.7 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-7701 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.

Frequently Asked Questions

madlib-object-utils before 0.1.7 is vulnerable to Prototype Pollution via setValue.
O3 Security · Impact-Aware SCA

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CVE-2020-7701: madlib-object-utils — Fixed in 0.1.7