CVEvulnerability
CVE-2026-27837
9.8 CRITICAL
Official page ↗
- Status
- Analyzed
- Published
- 2026-02-26
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 6.3 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
- CVSS 3.1 ([email protected])
- 9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-1321
Description
Dottie provides nested object access and manipulation in JavaScript. Versions 2.0.4 through 2.0.6 contain an incomplete fix for CVE-2023-26132. The prototype pollution guard introduced in commit `7d3aee1` only validates the first segment of a dot-separated path, allowing an attacker to bypass the protection by placing `__proto__` at any position other than the first. Both `dottie.set()` and `dottie.transform()` are affected. Version 2.0.7 contains an updated fix to address the residual vulnerability.
Affected configurations
• dottie project dottie (>= 2.0.4 < 2.0.7)
Related
Weakness · CWE (1)
- CWE-1321 Improperly Controlled Modification of Object Prototype Attributes weakness
References
- https://github.com/advisories/GHSA-4gxf-g5gf-22h4 Not Applicable
- https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14 Patch
- https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w Exploit, Vendor Advisory
- https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w Exploit, Vendor Advisory