cve.bz

CVE-2021-23421

9.8 criticalEPSS 1.1%

Critical (9.8) in merge-change project merge-change. EPSS 1.1% chance of exploitation in the next 30 days.

All versions of package merge-change are vulnerable to Prototype Pollution via the utils.set 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
1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)
CWE
CWE-1321
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-f9cv-665r-275hnpmmerge-change<=1.8.1no fix published

References

Check your stackJSON