CVE-2026-27837

6.3 MEDIUM
Published: February 26, 2026 Modified: February 28, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/advisories/GHSA-4gxf-g5gf-22h4
Source: security-advisories@github.com
Not Applicable
https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w
Source: security-advisories@github.com
Exploit Vendor Advisory
https://github.com/mickhansen/dottie.js/security/advisories/GHSA-r5mx-6wc6-7h9w
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
Exploit Vendor Advisory

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
6.3 / 10.0
EPSS (Exploit Probability)
0.1%
21th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

dottie_project