multiparty vulnerable to ReDoS via filename parsing
Details
CVSS v3
7.5
Affected versions
Not available in our cache.
Summary
multiparty@4.2.3 and lower versions are vulnerable to denial of service via regular expression backtracking in the Content-Disposition filename parameter parser. A crafted multipart upload with a long header value can cause regex matching to take seconds, blocking the event loop. Impact: any service accepting multipart uploads via multiparty is affected. Workarounds: limiting upload sizes at the proxy or gateway layer reduces but does not eliminate the attack surface, since a small header of around 8 KB is sufficient to trigger the vulnerable backtracking. Upgrade to multiparty@4.3.0 or higher.
TopVuln sends digest emails with high-risk CVE picks across multiple authoritative sources—curated with EPSS and AI. Choose daily per-stream emails and optional weekly or monthly roundups.