Prototype Pollution in object-path
This affects the package object-path before 0.11.6. A type confusion vulnerability can lead to a bypass of CVE-2020-15256 when the path components used in the path parameter are arrays. In particular, the condition currentPath === '__proto__' returns false if currentPath is ['__proto__']. This is because the === operator returns always false when the type of the operands is different.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| npm package | object-path | < 0.11.6 | 0.11.6 |
References
- https://nvd.nist.gov/vuln/detail/CVE-2021-23434
- https://github.com/mariocasciaro/object-path/commit/7bdf4abefd102d16c163d633e8994ef154cab9eb
- https://github.com/mariocasciaro/object-path
- https://github.com/mariocasciaro/object-path#0116
- https://github.com/mariocasciaro/object-path%230116
- https://lists.debian.org/debian-lts-announce/2023/01/msg00031.html
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1570423
- https://snyk.io/vuln/SNYK-JS-OBJECTPATH-1569453
- CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L- Weakness (CWE)
CWE-1321, CWE-843- Platform
- npm
- Package
object-path- Disclosed
- 01.09.2021
- Updated
- 11.10.2026 10:22
Sources and licenses
OSV / GitHub Advisory Database - GHSA-v39p-96qg-c8rf - CC BY 4.0
Vulnerability history: object-path
All published vulnerabilities of this package (npm package), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 3
- First → latest
- 10.2020 09.2021
- Without a fix
- 0
- Exploited in attacks
- 0
Severity breakdown
- High 2
- Medium 1
Disclosures per year
- 2020: 1
- 2021: 2
- 2022: 0
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 0
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