CVE-2026-3520: falha de alta gravidade em expressjs multer
Multer vulnerable to Denial of Service via uncontrolled recursion
Publicada em · Atualizada em
Aviso por e-mail quando ela entrar no KEV, ganhar PoC pública ou subir de nota.
21Vexday Risk Score
Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.
ssvc Trackcvss 8.7epss 0.8%
Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.1 allows an attacker to trigger a Denial of Service (DoS) by sending malformed requests, potentially causing stack overflow. Users should upgrade to version 2.1.1 to receive a patch. No known workarounds are available.
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
Produtos afetados
expressjs · multerCVEs relacionadas — expressjs multer
No mesmo produto, das mais perigosas para as menos.
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Referências
https://access.redhat.com/errata/RHSA-2026:6174https://access.redhat.com/errata/RHSA-2026:6802https://access.redhat.com/security/cve/CVE-2026-3520https://bugzilla.redhat.com/show_bug.cgi?id=2444584https://cna.openjsf.org/security-advisories.htmlhttps://github.com/expressjs/multer/commit/7e66481f8b2e6c54b982b34c152479e096ce2752https://github.com/expressjs/multer/security/advisories/GHSA-5528-5vmv-3xc2https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-3520.jsonhttps://www.cve.org/CVERecord?id=CVE-2026-3520