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MEDIUM severity

CVE-2020-7709 — json-pointer

MEDIUMFix: manuelstofer/json-pointer#34

CVE-2020-7709 is a medium-severity (CVSS 6) CWE-1321 vulnerability in org.webjars.npm:json-pointer. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for org.webjars.npm:json-pointer — see the affected versions and patch details below.

Prototype pollution in json-pointer

Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
2 known
Exploitation data as of Nov 9, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.8%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs78th percentile — riskier than 78% of all scored CVEsHighest risk
0.53%1.11%1.70%2.28%1.0%1.8%May 26Sep 26Nov 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

2 pkgs 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.

441other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
json-pointernpm
6.1Mdownloads / week

Description

This affects the package json-pointer before 0.6.1. Multiple reference of object using slash is supported.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.webjars.npm:json-pointerall versions0.6.1org.webjars.npm:json-pointer:0.6.1
📦npmjson-pointerall versions0.6.1npm install json-pointer@0.6.1

Affected Products

1 product · 1 configurations
Application
json-pointermanuelstofer
< 0.6.1
range
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

This affects the package json-pointer before 0.6.1. Multiple reference o…

snyk.ioNVDJul 2021

Report on snyk.io

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 org.webjars.npm:json-pointer, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.webjars.npm:json-pointer to 0.6.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-7709 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

This affects the package json-pointer before 0.6.1. Multiple reference of object using slash is supported.
O3 Security · Impact-Aware SCA

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CVE-2020-7709: json-pointer — Fixed in 0.6.1