Vulnerability in Janl Jsonpointer
CVE-2021-23807
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.027 (85.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 85.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.027 · newest: 0.027 · change: 0.000
Affected products
- Janl Jsonpointer
- Jsonpointer — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-JSONPOINTER-1577288 (Exploit, Patch, VDB Entry, Third Party Advisory, Mitigation)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1910273 (Exploit, Patch, VDB Entry, Third Party Advisory, Mitigation)
- github.com/janl/node-jsonpointer/pull/51 (Patch, Third Party Advisory)
- github.com/janl/node-jsonpointer/commit/a0345f3550cd9c4d89f33b126390202b89510ad4 (Patch, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-23807?
- CVE-2021-23807 is a medium-severity vulnerability in Janl Jsonpointer, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.6/10. Published 2021-11-03.
- How severe is CVE-2021-23807?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2021-23807 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.