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MEDIUM severity

CVE-2019-10793 — dot-object

MEDIUMFix: rhalff/dot-object@f76cff5

CVE-2019-10793 is a medium-severity (CVSS 6.3) CWE-74 vulnerability in dot-object. 1 public exploit reference exists, so weaponization risk is real. A fix is available for dot-object — see the affected versions and patch details below.

Prototype Pollution in dot-object

Also known asGHSA-j9cf-pr2x-5273SNYK-JS-DOTOBJECT-548905
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
1 known
Exploitation data as of Oct 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
1.1%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs65th percentile — riskier than 65% of all scored CVEsHighest risk
0.00%0.53%1.07%1.60%0.3%1.1%Apr 26Aug 26Oct 26

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

How urgent is this, really

CVE-2019-10793 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.

Where this sits among everything scored

Of 385,386 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.

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.

750other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
dot-objectnpm
393Kdownloads / week

Description

dot-object before 2.1.3 is vulnerable to Prototype Pollution. The set function could be tricked into adding or modifying properties of Object.prototype using a proto payload.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmdot-objectall versions2.1.3npm install dot-object@2.1.3

Affected Products

1 product · 1 configurations
Application
dot-objectdot-object_project
< 2.1.3
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.

dot-object before 2.1.3 is vulnerable to Prototype Pollution. The set fu…

snyk.ioNVDFeb 2020

Detection & mitigation playbook

Open-source dependency

  1. Detect

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

  2. Fix

    Update dot-object to 2.1.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2019-10793 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

dot-object before 2.1.3 is vulnerable to Prototype Pollution. The set function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
O3 Security · Impact-Aware SCA

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CVE-2019-10793: dot-object — Fixed in 2.1.3