{"cve":"CVE-2026-120235","nvd":{"published":"2026-11-01T16:18:14.757","modified":"2026-11-01T16:18:14.757","status":"Received","description":"A security vulnerability has been detected in ag-ui-protocol ag-ui up to 0.0.58. Affected is the function parseSSEStream of the file sdks/typescript/packages/client/src/transform/sse.ts of the component SSE Parser. The manipulation leads to resource consumption. The attack may be initiated remotely. The exploit has been disclosed publicly and may be used. The identifier of the patch is 9e7b2b00bce215bbf731f1e6094f63812527c432. The affected component should be upgraded.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P","score":2.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L","score":4.3},"cwes":["CWE-400","CWE-404"],"references":["https://github.com/ag-ui-protocol/ag-ui/","https://github.com/ag-ui-protocol/ag-ui/commit/9e7b2b00bce215bbf731f1e6094f63812527c432","https://github.com/ag-ui-protocol/ag-ui/issues/2522","https://github.com/ag-ui-protocol/ag-ui/pull/2627","https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-10-30"],"reference_tags":[{"url":"https://github.com/ag-ui-protocol/ag-ui/","tags":[]},{"url":"https://github.com/ag-ui-protocol/ag-ui/commit/9e7b2b00bce215bbf731f1e6094f63812527c432","tags":[]},{"url":"https://github.com/ag-ui-protocol/ag-ui/issues/2522","tags":[]},{"url":"https://github.com/ag-ui-protocol/ag-ui/pull/2627","tags":[]},{"url":"https://github.com/ag-ui-protocol/ag-ui/releases/tag/release/2026-10-30","tags":[]}],"products":[],"affected":[],"source":"nvd","synced_at":"2026-11-01T16:41:47.494881106+00:00"},"epss":null,"kev":null,"exploits":[],"weaknesses":[{"name":"Uncontrolled Resource Consumption","common_name":null,"deprecated":false,"replaced_by":[],"id":"CWE-400"},{"name":"Improper Resource Shutdown or Release","common_name":null,"deprecated":false,"replaced_by":[],"id":"CWE-404"}],"osv":[],"fixed":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program.","Public exploits: links to the Exploit Database (https://www.exploit-db.com, by OffSec; index under GPL-2.0), Rapid7's Metasploit Framework modules (https://github.com/rapid7/metasploit-framework, BSD-3-Clause) and ProjectDiscovery's nuclei templates (https://github.com/projectdiscovery/nuclei-templates, MIT). Only the links, titles and dates are stored; no exploit code is fetched or served.","CWE names and descriptions: MITRE's Common Weakness Enumeration (https://cwe.mitre.org), Copyright © 2006–2026, The MITRE Corporation, under the CWE terms of use (https://cwe.mitre.org/about/termsofuse.html). CWE is a trademark of The MITRE Corporation."]}