CVE-2019-10794 json
component-flatten vulnerable to Prototype Pollution
published 6y ago modified 4mo ago also GHSA-g6r3-hhg9-qf58 , EUVD-2022-3906
- cvss
- 6.3
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 54%
- public exploits
- 0
- none known
Summary
All versions of component-flatten are vulnerable to Prototype Pollution. The a function could be tricked into adding or modifying properties of Object.prototype using a __proto__ payload.
Patch / fix
Is CVE-2019-10794 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerExploit prediction
0.73% chance of exploitation in the next 30 days, higher than 54% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
| NVD | 2.0 | 6.5 | AV:N/AC:L/Au:S/C:P/I:P/A:P |
| GitHub | 3.1 | 6.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | component-flatten | <=1.0.1 |
no fix listed |
Affected products
- Snyk component-flatten
Classification
- Weakness
-
- CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component
References
-
snyk.io
/vuln/SNYK-JS-COMPONENTFLATTEN-548907
web, patch, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2019-10794
advisory
-
github.com
/componentjs/flatten.js
package
Sources
- CVE List CVE-2019-10794
- GitHub Advisory GHSA-g6r3-hhg9-qf58
- NVD CVE-2019-10794
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.