CVE-2023-25576 json
@fastify/multipart vulnerable to DoS due to unlimited number of parts
published 2023-02-14 3 y ago modified 2026-06-17 4 mo ago also GHSA-hpp2-2cr5-pf6g , EUVD-2023-0723
- cvss
- 7.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.5%
- EPSS 1.5% chance of exploitation in 30 days, percentile 73%
- public exploits
- 0
- none known
Summary
@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.
Patch / fix
- npm @fastify/multipart 6.0.1, 7.4.1
- fastify fastify-multipart 6.0.1, 7.4.1
CISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- 19 mo ago
Exploit prediction
1.46% chance of exploitation in the next 30 days, higher than 73% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| npm | @fastify/multipart | <6.0.1 >=7.0.0, <7.4.1 |
6.0.1 7.4.1 |
Affected products
- fastify fastify-multipart
Classification
References
-
github.com
/fastify/fastify-multipart/commit/85be81bedf5b29cfd9fe3efc30fb5a17173c1297
web, patch, third-party-advisory
-
github.com
/fastify/fastify-multipart/security/advisories/GHSA-hpp2-2cr5-pf6g
web, third-party-advisory
-
hackerone.com
/reports/1816195
web, permissions-required, third-party-advisory
-
github.com
/fastify/fastify-multipart/releases/tag/v6.0.1
web, release-notes, third-party-advisory
-
github.com
/fastify/fastify-multipart/releases/tag/v7.4.1
web, release-notes, third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2023-25576
advisory
-
github.com
/fastify/fastify-multipart
package
Sources
- CVE List CVE-2023-25576
- GitHub Advisory GHSA-hpp2-2cr5-pf6g
- NVD CVE-2023-25576
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.