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2 vulnerabilities found for @fastify/accepts-serializer by @fastify/accepts-serializer

CVE-2026-7768 (GCVE-0-2026-7768)

Vulnerability from nvd – Published: 2026-05-04 19:14 – Updated: 2026-05-04 19:50
VLAI?
Title
@fastify/accepts-serializer vulnerable to Denial of Service via Unbounded Accept Header Cache Growth
Summary
@fastify/accepts-serializer cached serializer-selection results keyed by the request Accept header without a size limit or eviction policy. A remote unauthenticated client could send many distinct but matching Accept header variants to make the cache grow unbounded, eventually exhausting the Node.js heap and crashing the process. Versions <= 6.0.3 are affected. Update to 6.0.4 or later, which bounds the cache via an LRU with a default size of 100 entries, configurable through the new cacheSize plugin option.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
@fastify/accepts-serializer @fastify/accepts-serializer Affected: 0 , < 6.0.4 (semver)
Unaffected: 6.0.4 (semver)
Create a notification for this product.
Credits
Yuki Matsuhashi Ulises Gascón Manuel Spigolon
Show details on NVD website
To clipboard 

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CVE-2026-7768 (GCVE-0-2026-7768)

Vulnerability from cvelistv5 – Published: 2026-05-04 19:14 – Updated: 2026-05-04 19:50
VLAI?
Title
@fastify/accepts-serializer vulnerable to Denial of Service via Unbounded Accept Header Cache Growth
Summary
@fastify/accepts-serializer cached serializer-selection results keyed by the request Accept header without a size limit or eviction policy. A remote unauthenticated client could send many distinct but matching Accept header variants to make the cache grow unbounded, eventually exhausting the Node.js heap and crashing the process. Versions <= 6.0.3 are affected. Update to 6.0.4 or later, which bounds the cache via an LRU with a default size of 100 entries, configurable through the new cacheSize plugin option.
Severity ?
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
Vendor Product Version
@fastify/accepts-serializer @fastify/accepts-serializer Affected: 0 , < 6.0.4 (semver)
Unaffected: 6.0.4 (semver)
Create a notification for this product.
Credits
Yuki Matsuhashi Ulises Gascón Manuel Spigolon
Show details on NVD website
To clipboard 

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