Allocation of Resources Without Limits or Throttling Affecting @fastify/accepts-serializer package, versions <6.0.4
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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- published6 May 2026
- disclosed4 May 2026
- credityuki-matsuhashi
Introduced: 4 May 2026
NewCVE-2026-7768 (opens in a new tab)How to fix?
Upgrade @fastify/accepts-serializer to version 6.0.4 or higher.
Overview
@fastify/accepts-serializer is a Serializer according to the accept header
Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling via the unbounded caching of serializer-selection results keyed by the Accept header. An attacker can exhaust system memory and cause a crash by sending numerous unique Accept header values, leading to uncontrolled cache growth.