@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.
References
| Link | Resource |
|---|---|
| https://cna.openjsf.org/security-advisories.html | Vendor Advisory |
| https://github.com/fastify/fastify-accepts-serializer/security/advisories/GHSA-qxhc-wx3p-2wmg | Vendor Advisory |
Configurations
History
29 May 2026, 14:43
| Type | Values Removed | Values Added |
|---|---|---|
| First Time |
Fastify
Fastify fastify\/accepts-serializer |
|
| CPE | cpe:2.3:a:fastify:fastify\/accepts-serializer:*:*:*:*:*:node.js:*:* | |
| References | () https://cna.openjsf.org/security-advisories.html - Vendor Advisory | |
| References | () https://github.com/fastify/fastify-accepts-serializer/security/advisories/GHSA-qxhc-wx3p-2wmg - Vendor Advisory |
04 May 2026, 20:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-04 20:16
Updated : 2026-05-29 14:43
NVD link : CVE-2026-7768
Mitre link : CVE-2026-7768
CVE.ORG link : CVE-2026-7768
JSON object : View
Products Affected
fastify
- fastify\/accepts-serializer
CWE
CWE-770
Allocation of Resources Without Limits or Throttling