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Medium severity6.5NVD Advisory· Published Dec 10, 2021· Updated Jun 17, 2026

CVE-2021-23663

CVE-2021-23663

Description

All versions of package sey are vulnerable to Prototype Pollution via the deepmerge() function.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected packages

Versions sourced from the GitHub Security Advisory.

Package	Affected versions	Patched versions
seynpm	<= 0.3.0	—

Affected products

3

Sey Project/Sey
cpe:2.3:a:sey_project:sey:*:*:*:*:*:node.js:*:*
sey/seydescription
ghsa-coords
pkg:npm/sey
Range: <= 0.3.0

Patches

Vulnerability mechanics

References

3

snyk.io/vuln/SNYK-JS-SEY-1727592nvdExploitMitigationThird Party AdvisoryWEB
github.com/advisories/GHSA-wjpc-cgvw-xx23ghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2021-23663ghsaADVISORY

News mentions

0

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