# CVE-2026-27837: node-dottie: Dottie provides nested object access and manipulation in JavaScript

CVE-2026-27837 is fixed in node-dottie on 1 platform by DEBIAN-CVE-2026-27837 (version 2.0.7+~2.0.7-1), released February 26, 2026. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2026-27837
- Priority: Urgent
- CVSS: 9.8 (critical)
- EPSS: 0.0036
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 26, 2026

## 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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | node-dottie Debian 14 | 2.0.7+~2.0.7-1 | [DEBIAN-CVE-2026-27837](https://patchblox.com/security/data/fix/linux/debian-cve-2026-27837.md) | Feb 26, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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