Medium severity5.6NVD Advisory· Published Nov 3, 2021· Updated Jun 17, 2026
CVE-2021-23509
CVE-2021-23509
Description
This affects the package json-ptr before 3.0.0. A type confusion vulnerability can lead to a bypass of CVE-2020-7766 when the user-provided keys used in the pointer parameter are arrays.
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 |
|---|---|---|
json-ptrnpm | < 3.0.0 | 3.0.0 |
Affected products
3- json-ptr/json-ptrdescription
Patches
Vulnerability mechanics
References
6- github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849canvdPatchThird Party AdvisoryWEB
- github.com/flitbit/json-ptr/pull/42nvdPatchThird Party AdvisoryWEB
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165nvdExploitMitigationPatchThird Party AdvisoryVDB Entry
- snyk.io/vuln/SNYK-JS-JSONPTR-1577291nvdExploitMitigationPatchThird Party AdvisoryVDB EntryWEB
- github.com/advisories/GHSA-8gwj-8hxc-285wghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-23509ghsaADVISORY
News mentions
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