MEDIUM🇵🇱 Wersja polska

CVE-2026-5038

CVSS 5.3v3.1pub. 2026-06-15upd. 2026-06-16

Impact: multer versions 2.0.0-alpha.1 through 2.1.1 and 3.0.0-alpha.1 are vulnerable to a Denial of Service when using diskStorage. Aborted or malformed multipart uploads leave orphaned partial files on disk because the Readable.pipe() call does not propagate the stream destroy signal to the underlying fs.WriteStream. An attacker can exhaust disk space by triggering many aborted uploads, with no application bug required. Patches: Users should upgrade to multer 2.2.0 (2.x line) or 3.0.0-alpha.2 (3.x prerelease). Both versions track in-flight write streams and clean them up on the abort path. Workarounds: None.

CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
  • Expressjs Multer

    APP
    Expressjs
    3.0.02.0.0 – 2.2.0 (bez)
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CHECK WITH VENDOR
No clear patch data available. Check vendor references.
Tags
DoS
CWE
References

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