CVE Explorer
CVE-2026-7768
@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 p
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","packageURL":"pkg:npm/@fastify/accepts-serializer","product":"@fastify/accepts-serializer","vendor":"@fastify/accepts-serializer","versions":[{"lessThan":"6.0.4","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"6.0.4","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:d19bc9f2e298a1076469aa458cc0f8625f50d195b9bbf22e9e3e0fcf510b0cc8 · sha256:c2cfc59111d99be9… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:d19bc9f2e298a1076469aa458cc0f8625f50d195b9bbf22e9e3e0fcf510b0cc8 · sha256:c2cfc59111d99be9… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:d19bc9f2e298a1076469aa458cc0f8625f50d195b9bbf22e9e3e0fcf510b0cc8 · sha256:c2cfc59111d99be9… · /containers/cna/problemTypes/0/descriptions/0
Source references
2 source assertions{"url":"https://cna.openjsf.org/security-advisories.html"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d19bc9f2e298a1076469aa458cc0f8625f50d195b9bbf22e9e3e0fcf510b0cc8 · sha256:c2cfc59111d99be9… · /containers/cna/references/0
{"url":"https://github.com/fastify/fastify-accepts-serializer/security/advisories/GHSA-qxhc-wx3p-2wmg"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:d19bc9f2e298a1076469aa458cc0f8625f50d195b9bbf22e9e3e0fcf510b0cc8 · sha256:c2cfc59111d99be9… · /containers/cna/references/1
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.