CVE-2026-27837

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.

• CWE-1321

• https://github.com/advisories/GHSA-4gxf-g5gf-22h4Not Applicable
• https://github.com/mickhansen/dottie.js/commit/7e8fa1345a4b46325f0eab8d7aeb1c4deaefdb14Patch
• https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9wExploit, Vendor Advisory
• https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9wExploit, Vendor Advisory

Published

Feb 26, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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