CVE-2026-58661
n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpo
CVSS
4.3
Medium
EPSS
0.2%
p13
KEV
—
Exploit Today
4
0-100
Published: Jul 10, 2026 · Last modified: Jul 13, 2026 · CWE-770
0.2%EPSS · 30 days0.2%
2026-07-112026-07-18
n8n before 2.28.0 (and before 1.123.58 on the 1.x branch) contains a disk space exhaustion vulnerability in the data-table file upload endpoint. The per-request quota check does not account for files already written to the shared temporary directory, allowing an authenticated user to repeatedly upload files that accumulate on disk until the periodic cleanup runs, potentially exhausting available disk space on the host.
CVECVSSEPSSKEVRExploitTitleMod.
CVE-2026-217107.5 HIG97.8%
——29A flaw in Node.js HTTP request handling causes an uncaught `TypeError` when a request is received with a header named `__proto__` and the application accesses `req.headersDistinct`.
When this occurs, `dest["__proto__"]` resolves to `Object.prototype` rather than `undefined`, causing `.push()` to be called on a non-array. This exception is thrown synchronously inside a property getter and cannot be intercepted by `error` event listeners, meaning it cannot be handled without wrapping every `req.headersDistinct` access in a `try/catch`.
* This vulnerability affects all Node.js HTTP servers on **20.x, 22.x, 24.x, and v25.x**4dCVE-2026-261307.5 HIG85.0%
——25Allocation of resources without limits or throttling in ASP.NET Core allows an unauthorized attacker to deny service over a network.4dCVE-2026-489337.5 HIG84.9%
——25A flaw in Node.js WebCrypto implementation can crash the process if the input of `subtle.encrypt()` is a multiple of 2GiB.
This vulnerability affects all supported release lines: **Node.js 22**, **Node.js 24**, and **Node.js 26**.2dCVE-2026-455917.5 HIG82.4%
——25Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.4dCVE-2021-366307.5 HIG80.5%
——24DDOS reflection amplification vulnerability in eAut module of Ruckus Wireless SmartZone controller that allows remote attackers to perform DOS attacks via crafted request.10dCVE-2025-97847.5 HIG80.3%
——24A flaw was found in Undertow where malformed client requests can trigger server-side stream resets without triggering abuse counters. This issue, referred to as the "MadeYouReset" attack, allows malicious clients to induce excessive server workload by repeatedly causing server-side stream aborts. While not a protocol bug, this highlights a common implementation weakness that can be exploited to cause a denial of service (DoS).19d