Vulnerability · Published Nov 3, 2021 · Assigned by snyk
CVE-2021-23509Prototype Pollution
Medium 5.6
In plain English
A medium-severity security flaw in json-ptr. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.8% (higher than 79% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)5.6Medium
Exploit odds (30 days)1.8%top 21.1% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| npm | json-ptr | 3.0.0 | GHSA-8gwj-8hxc-285w |
Affected products (as reported)
References
- https://snyk.io/vuln/SNYK-JS-JSONPTR-1577291 x_refsource_MISC
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1767165 x_refsource_MISC
- https://github.com/flitbit/json-ptr/pull/42 x_refsource_MISC
- https://github.com/flitbit/json-ptr/commit/5dc458fbad1c382a2e3ca6d62e66ede3d92849ca x_refsource_MISC
- https://github.com/flitbit/json-ptr%23security-vulnerabilities-resolved x_refsource_MISC