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Critical severity9.8NVD Advisory· Published Jan 10, 2022· Updated Jun 17, 2026

CVE-2021-23543

CVE-2021-23543

Description

All versions of package realms-shim are vulnerable to Sandbox Bypass via a Prototype Pollution attack vector.

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
realms-shimnpm	<= 1.2.2	—

Affected products

3

Agoric/Realms Shim
cpe:2.3:a:agoric:realms-shim:*:*:*:*:*:node.js:*:*
realms-shim/realms-shimdescription
ghsa-coords
pkg:npm/realms-shim
Range: <= 1.2.2

Patches

Vulnerability mechanics

References

4

snyk.io/vuln/SNYK-JS-REALMSSHIM-2309908nvdExploitThird Party AdvisoryWEB
github.com/advisories/GHSA-q4j7-v27r-fgcxghsaADVISORY
nvd.nist.gov/vuln/detail/CVE-2021-23543ghsaADVISORY
www.npmjs.com/package/realms-shimnvdProductThird Party AdvisoryWEB

News mentions

0

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