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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-r5mx-6wc6-7h9w dottie is vulnerable to Prototype Pollution bypass via non-first path segments in set() and transform()
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Fri, 27 Feb 2026 00:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-915
References
Metrics threat_severity

None

threat_severity

Moderate


Thu, 26 Feb 2026 17:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Thu, 26 Feb 2026 13:30:00 +0000

Type Values Removed Values Added
First Time appeared Mickhansen
Mickhansen dottie.js
Vendors & Products Mickhansen
Mickhansen dottie.js

Thu, 26 Feb 2026 01:00:00 +0000

Type Values Removed Values Added
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.
Title Dottie vulnerable to prototype pollution bypass via non-first path segments in set() and transform()
Weaknesses CWE-1321
References
Metrics cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-02-26T14:40:07.451Z

Reserved: 2026-02-24T02:32:39.801Z

Link: CVE-2026-27837

cve-icon Vulnrichment

Updated: 2026-02-26T14:39:49.575Z

cve-icon NVD

Status : Received

Published: 2026-02-26T01:16:24.937

Modified: 2026-02-26T15:17:39.733

Link: CVE-2026-27837

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-02-26T00:19:24Z

Links: CVE-2026-27837 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-02-26T13:10:22Z

Weaknesses