VulnSocial

CVE-2026-2359Disclosure(expressjs / multer)

LOWCVSS 7.5 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch expressjs multer systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (DoS) by dropping connection during file upload, potentially causing resource exhaustion. Users should upgrade to version 2.1.0 to receive a patch. No known workarounds are available.

expressjs CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Patch / fix
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-772

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • multer

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
expressjs
Products
multer

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-02-27: 2Patch / Workaround · 2026-02-27: 1Technical Details · 2026-02-27: 202-27
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • Ulises Gascón@kom_256
    Patch

    🚨 High-severity security fix in multer@2.1.0 just released! - Patches CVE-2026-2359 — vulnerable denial of Service via resource exhaustion https://github.com/expressjs/multer/security/advisories/GHSA-v52c-386h-88mc

    Post summary

    A high‑severity patch for [email protected] has been released, addressing CVE‑2026‑2359, a denial‑of‑service vulnerability caused by resource exhaustion. No exploit code, active exploitation, or PoC is referenced.

    00020224
    5.6K followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-2359 Multer is a node.js middleware for handling `multipart/form-data`. A vulnerability in Multer prior to version 2.1.0 allows an attacker to trigger a Denial of Service (D… https://www.cve.org/CVERecord?id=CVE-2026-2359

    Post summary

    CVE-2026-2359 is a Denial of Service vulnerability in Multer versions before 2.1.0, as documented in the linked CVE record.

    00000113
    56.6K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appexpressjsmulter-node.js-

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