CVE-2026-39820
Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocati
CVSS
7.5
High
EPSS
0.8%
p52
KEV
—
Exploit Today
16
0-100
Published: May 7, 2026 · Last modified: Jul 16, 2026 · CWE-770 · CWE-606
0.8%EPSS · 30 days0.8%
2026-06-302026-07-16
Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
- go.devhttps://go.dev/cl/759940
- go.devhttps://go.dev/issue/78566
- groups.google.comhttps://groups.google.com/g/golang-announce/c/qcCIEXso47M
- pkg.go.devhttps://pkg.go.dev/vuln/GO-2026-4986
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:23262
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:23264
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33120
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33123
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33142
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33150
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:33574
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:34364
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36319
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36625
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36754
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:36797
- access.redhat.comhttps://access.redhat.com/errata/RHSA-2026:40262
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-39820
- bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=2467820
- security.access.redhat.comhttps://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39820.json
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**2dCVE-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.2dCVE-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**.14hCVE-2026-455917.5 HIG82.4%
——25Uncontrolled resource consumption in ASP.NET Core allows an unauthorized attacker to deny service over a network.2dCVE-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.8dCVE-2025-97847.5 HIG80.2%
——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).17d