Vulnerability in Json-Ptr Project
CVE-2021-23509
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.
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: 0.018 (78.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 78th percentile — 78.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.018 · newest: 0.018 · change: 0.000
Affected products
- Json-Ptr Project
- Json-Ptr — versions unspecified
Weakness classification (CWE)
Public proof-of-concept exploits
References
- snyk.io/vuln/SNYK-JS-JSONPTR-1577291 (Exploit, Patch, VDB Entry, Third Party Advisory, Mitigation)
- snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165 (Exploit, Patch, VDB Entry, Third Party Advisory, Mitigation)
- github.com/flitbit/json-ptr/pull/42 (Patch, Third Party Advisory)
- github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca (Patch, Third Party Advisory)
- github.com/flitbit/json-ptr#security-vulnerabilities-resolved (Third Party Advisory, Broken Link)
Frequently asked questions
- What is CVE-2021-23509?
- CVE-2021-23509 is a medium-severity vulnerability in Json-Ptr Project, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 5.6/10. Published 2021-11-03.
- How severe is CVE-2021-23509?
- Medium severity. CVSS v3 base score is 5.6 out of 10.
- Is CVE-2021-23509 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.