Starcounter-Jack JSON-Patch Prototype Pollution vulnerability
A vulnerability has been found in Starcounter-Jack JSON-Patch up to 3.1.0 and classified as problematic. This vulnerability affects unknown code. The manipulation leads to improperly controlled modification of object prototype attributes ('prototype pollution'). The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. Upgrading to version 3.1.1 can address this issue. The name of the patch is 7ad6af41eabb2d799f698740a91284d762c955c9. It is recommended to upgrade the affected component. VDB-216778 is the identifier assigned to this vulnerability.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | fast-json-patch | < 3.1.1 | 3.1.1 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-4279
- https://github.com/Starcounter-Jack/JSON-Patch/pull/262
- https://github.com/Starcounter-Jack/JSON-Patch/commit/7ad6af41eabb2d799f698740a91284d762c955c9
- https://blog.effectrenan.com/pwn2win-2021-illusion-web-challenge
- https://github.com/Starcounter-Jack/JSON-Patch
- https://github.com/Starcounter-Jack/JSON-Patch/releases/tag/3.1.1
- https://vuldb.com/?ctiid.216778
- https://vuldb.com/?id.216778
- https://www.huntr.dev/bounties/1-npm-fast-json-patch
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-1321- Platform
- npm
- Package
fast-json-patch- Disclosed
- 25.12.2022
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-8gh8-hqwg-xf34 - CC BY 4.0
Vulnerability history: fast-json-patch
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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