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@fastify/accepts-serializer Vulnerable to Denial of Service via Unbounded Accept Header Cache Growth

🗓️ 08 May 2026 17:13:38Reported by GitHub Advisory DatabaseType 
github
 github
🔗 github.com👁 14 Views

DoS in fastify accepts-serializer from unbounded Accept header cache; upgrade to 6.0.4 with bounded least recently used cache (100 entries) configurable by cacheSize.

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08 May 2026 17:13Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.17.5
EPSS0.00284
SSVC
14