{"id":"CVE-2026-23870","title":"A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following pac…","summary":"A denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following pac…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-400","CWE-770"],"vendor":"facebook","product":"react-server-dom-parcel","affected":["react-server-dom-parcel >= 19.0.0, <= 19.0.5","react-server-dom-parcel >= 19.1.0, <= 19.1.6","react-server-dom-parcel >= 19.2.0, <= 19.2.5","react-server-dom-turbopack >= 19.0.0, <= 19.0.5","react-server-dom-turbopack >= 19.1.0, <= 19.1.6","react-server-dom-turbopack >= 19.2.0, <= 19.2.5","react-server-dom-webpack >= 19.0.0, <= 19.0.5","react-server-dom-webpack >= 19.1.0, <= 19.1.6","react-server-dom-webpack >= 19.2.0, <= 19.2.5"],"published":"2026-05-06","updated":"2026-08-12","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-23870","references":[{"url":"https://github.com/facebook/react/security/advisories/GHSA-rv78-f8rc-xrxh","label":"cve-assign@fb.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23870.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-23870"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2467287"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23870"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23870"}],"tags":["nvd","exploit-available","csaf","vex","red-hat"],"epss":0.01533,"epssPercentile":0.73709,"ingestedAt":"2026-08-13T13:03:06.218Z","exploits":{"github":2,"githubRepos":["https://github.com/dwisiswant0/next-16.2.4-pocs","https://github.com/emresandikci/nextjs-cve-2026-23870-checker"],"checkedAt":"2026-09-24T07:53:00.989Z"},"exploitAvailable":true,"slug":"CVE-2026-23870","body":"## Overview\n\nA denial of service vulnerability could be triggered by sending specially crafted HTTP requests to server function endpoints, this could lead to server crashes, out-of-memory exceptions or excessive CPU usage; affecting the following packages: react-server-dom-webpack, react-server-dom-parcel, react-server-dom-turbopack (versions 19.0.0 through 19.0.5, 19.1.0 through 19.1.6, and 19.2.0 through 19.2.5).\n\n## Affected\n\n- `react-server-dom-parcel >= 19.0.0, <= 19.0.5`\n- `react-server-dom-parcel >= 19.1.0, <= 19.1.6`\n- `react-server-dom-parcel >= 19.2.0, <= 19.2.5`\n- `react-server-dom-turbopack >= 19.0.0, <= 19.0.5`\n- `react-server-dom-turbopack >= 19.1.0, <= 19.1.6`\n- `react-server-dom-turbopack >= 19.2.0, <= 19.2.5`\n- `react-server-dom-webpack >= 19.0.0, <= 19.0.5`\n- `react-server-dom-webpack >= 19.1.0, <= 19.1.6`\n- `react-server-dom-webpack >= 19.2.0, <= 19.2.5`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · updated 2026-09-16 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-23870.json)","depth":"midnight","depthScore":54,"depthScoreParts":{"impact":41.3,"likelihood":0.3,"exploitation":12,"ransomware":0},"changes":[{"seq":5024,"id":"CVE-2026-23870","ts":1788887229057,"field":"exploit_available","old":"false","new":"true"},{"seq":3907,"id":"CVE-2026-23870","ts":1788886360123,"field":"exploit_available","old":"true","new":"false"},{"seq":2729,"id":"CVE-2026-23870","ts":1788883025881,"field":"exploit_available","old":"false","new":"true"},{"seq":1758,"id":"CVE-2026-23870","ts":1788882429898,"field":"exploit_available","old":"true","new":"false"},{"seq":864,"id":"CVE-2026-23870","ts":1788881862911,"field":"exploit_available","old":"false","new":"true"}]}