CVE-2023-25576
highpriority · track · 31EPSS 0.015 · 73 %ileEUUSEPSS · scored 2026-10-27
@fastify/multipart is a Fastify plugin to parse the multipart content-type. Prior to versions 7.4.1 and 6.0.1, @fastify/multipart may experience denial of service due to a number of situations in which an unlimited number of parts are accepted. This includes the multipart body parser accepting an unlimited number of file parts, the multipart body parser accepting an unlimited number of field parts, and the multipart body parser accepting an unlimited number of empty parts as field parts. This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). There are no known workarounds.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.9–7.5
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (6)
Products and version ranges known to be affected.
advisories (1)
Vendor and ecosystem advisories describing this.
- GHSA-hpp2-2cr5-pf6gDenial of service due to unlimited number of parts2023-02-14ghsa · osvUS
### Impact * The multipart body parser accepts an unlimited number of file parts. * The multipart body parser accepts an unlimited number of field parts. * The multipart body parser accepts an unlimited number of empty parts as field parts. ### Patches This is fixed in v7.4.1 (for Fastify v4.x) and v6.0.1 (for Fastify v3.x). ### Workarounds There are no known workaround. ### References Reported at https://hackerone.com/reports/1816195.
also known as (3)
Other names and identifiers for this entity.
sources
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references (17)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-25576/cnnvd
- https://github.com/fastify/fastify-multipart/commit/85be81bedf5b29cfd9fe3efc30fb5a17173c1297cnnvd
- https://github.com/fastify/fastify-multipart/releases/tag/v6.0.1cnnvd
- https://github.com/fastify/fastify-multipart/releases/tag/v7.4.1cnnvd
- https://github.com/fastify/fastify-multipart/security/advisories/GHSA-hpp2-2cr5-pf6gcnnvd
- https://hackerone.com/reports/1816195cnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2023-25576cnnvd
- https://github.com/fastify/fastify-multipart/commit/85be81bedf5b29cfd9fe3efc30fb5a17173c1297enisa_euvd
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