cve.bz

CVE-2021-23807

9.8 criticalEPSS 2.8%

Critical (9.8) in janl jsonpointer. EPSS 2.8% chance of exploitation in the next 30 days. Fixed in jsonpointer 5.0.0.

This affects the package jsonpointer before 5.0.0. A type confusion vulnerability can lead to a bypass of a previous Prototype Pollution fix when the pointer components are arrays.

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
2.8% chance of exploitation in the next 30 days; higher than 86% of CVEs (scores of 2026-10-31)
CWE
CWE-843
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-282f-qqgm-c34qnpmjsonpointer<5.0.05.0.0
GHSA-282f-qqgm-c34qnpmorg.webjars.npm:json-pointer<5.0.05.0.0

References

Check your stackJSON