VDB
CVE-2026-3520
CVE-2026-3520
PUBLISHED
CVSS 8.699999809265137 HIGH
Multer Vulnerable to Denial of Service via Uncontrolled Recursion
EPSS 0.07% · 20.8th percentile
Risk Scores
CVSS 4.0
8.699999809265137
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
EPSS Score
0.07%
20.8th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| npm | multer | 0, 0, 0 |
| expressjs | multer | 0, 0, 0 |
Exploit Intelligence
- CIRCL seen: CVE-2026-3520 (circl-sighting)
- CIRCL seen: CVE-2026-3520 (circl-sighting)
- CIRCL seen: CVE-2026-3520 (circl-sighting)
- https://cna.openjsf.org/security-advisories.html (circl)
- https://github.com/expressjs/multer/security/advisories/GHSA-5528-5vmv-3xc2 (circl)
- https://github.com/expressjs/multer/commit/7e66481f8b2e6c54b982b34c152479e096ce2752 (circl)
- https://www.cve.org/CVERecord?id=CVE-2026-3520 (circl)
- trivity-report.html (github-poc)
- trivity-report.html (github-poc)
- trivity-report.html (github-poc)
…and 3 more exploits
Timeline
- Mar 4, 2026 CVE ID Reserved
- Mar 4, 2026 CVE Published
- Mar 4, 2026 PoC Published
- Mar 4, 2026 CVE Updated
- Mar 4, 2026 PoC Published
- Mar 5, 2026 EPSS Score
- Mar 5, 2026 PoC Published
- Mar 6, 2026 EPSS Score
- Mar 7, 2026 EPSS Score
- Mar 9, 2026 EPSS Score
- Mar 9, 2026 Security Advisory
- Mar 10, 2026 EPSS Score
References
- https://github.com/expressjs/multer/security/advisories/GHSA-5528-5vmv-3xc2 url
- https://www.cve.org/CVERecord?id=CVE-2026-3520 url
- https://github.com/expressjs/multer/commit/7e66481f8b2e6c54b982b34c152479e096ce2752 url
- https://cna.openjsf.org/security-advisories.html url
- https://nvd.nist.gov/vuln/detail/CVE-2026-3520 advisory
- https://github.com/expressjs/multer package