Allocation of Resources Without Limits or Throttling Affecting serialize-javascript package, versions <7.0.5
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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- published29 Mar 2026
- disclosed27 Mar 2026
- creditTomer Aberbach
Introduced: 27 Mar 2026
NewCVE-2026-34043 (opens in a new tab)How to fix?
Upgrade serialize-javascript to version 7.0.5 or higher.
Overview
serialize-javascript is a package to serialize JavaScript to a superset of JSON that includes regular expressions and functions.
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling through the serialize function when handling specially crafted array-like objects with a very large length property. An attacker can cause excessive CPU consumption and make the application unresponsive by submitting such objects for serialization.
Note: While direct exploitation is difficult, it becomes a high-priority threat if the environment is also vulnerable to prototype pollution or insecure YAML deserialization.