Allocation of Resources Without Limits or Throttling Affecting browserslist package, versions <4.28.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Start learning- Snyk IDSNYK-JS-BROWSERSLIST-18856271
- published16 Aug 2026
- disclosed13 Aug 2026
- creditiaohkut-from-NightWolf-Team
Introduced: 13 Aug 2026
NewCVE-2026-73089 (opens in a new tab)How to fix?
Upgrade browserslist to version 4.28.7 or higher.
Overview
browserslist is a Share target browsers between different front-end tools, like Autoprefixer, Stylelint and babel-env-preset
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling due to the in-memory cache and parseCache in index.js. An attacker can eventually exhaust process memory and crash a long-running Node.js application by sending a stream of distinct query strings, causing each unique browserslist() result and parsed query AST to be retained indefinitely.