cve.bz

CVE-2021-23700

9.8 criticalEPSS 1.2%

Critical (9.8) in merge-deep2 project merge-deep2. EPSS 1.2% chance of exploitation in the next 30 days.

All versions of package merge-deep2 are vulnerable to Prototype Pollution via the mergeDeep() function.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 68% of CVEs (scores of 2026-10-31)
CWE
CWE-1321
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-j28q-p8ww-cp87npmmerge-deep2<=3.0.6no fix published

References

Check your stackJSON