{"id":"CVE-2026-89418","aliases":["AZL-103491","EUVD-2026-81523","ROOT-APP-NPM-CVE-2026-89418"],"status":"published","title":"Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf)","description":"google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00277,"percentile":0.20291,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-674"],"published":"2026-09-17T13:27:30Z","modified":"2026-09-28T05:39:54Z","fixes":[{"ecosystem":"Root:npm","package":"google-protobuf","fixed_in":["3.21.4-aikido.1"],"sources":["osv"]},{"ecosystem":"Root:npm","package":"@rootio/google-protobuf","fixed_in":["3.21.4-root.io.1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Azure Linux:3","package":"python-tensorboard","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.16.2-6"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"google-protobuf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.21.4-aikido.1"}]}]},{"source":"osv","ecosystem":"Root:npm","package":"@rootio/google-protobuf","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.21.4-root.io.1"}]}]}],"products":[{"vendor":"google","product":"protobuf-javascript (aka google-protobuf npm package)"}],"references":[{"url":"https://github.com/protocolbuffers/protobuf-javascript/security/advisories/GHSA-5h29-r2cp-hfmr","tags":["exploit"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89418","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2026-89418","title":"Uncontrolled Recursion leading to Denial of Service in protobuf-javascript (google-protobuf)","description":"google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.","status":"published","published":"2026-09-17T13:27:30.163Z","modified":"2026-09-17T19:38:55.924Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:19:55.526923Z"}],"euvd":[{"id":"EUVD-2026-81523","description":"google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.","status":"published","published":"2026-09-17T13:27:30Z","modified":"2026-09-17T19:38:55Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T17:28:09.684322Z"}],"nvd":[{"id":"CVE-2026-89418","description":"google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.","status":"published","published":"2026-09-17T14:17:52.157Z","modified":"2026-09-18T13:45:29.27Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"}],"cwes":["CWE-674"],"updated_at":"2026-11-02T14:12:49.013904Z"}],"osv":[{"id":"AZL-103491","title":"CVE-2026-89418 affecting package python-tensorboard 2.16.2-6","description":"google-protobuf contains an unbounded recursion when parsing unknown protobuf group fields. An attacker can send a small crafted payload of deeply nested START_GROUP wire bytes to any Node.js service that calls the generated deserializeBinary() API, causing a RangeError: Maximum call stack size exceeded and crashing the process. No authentication or prior knowledge of the schema is required.","status":"published","published":"2026-09-17T14:17:52Z","modified":"2026-09-28T05:39:54Z","updated_at":"2026-11-02T15:28:00.794214Z"},{"id":"ROOT-APP-NPM-CVE-2026-89418","title":"CVE-2026-89418 in google-protobuf - Patched by Root","description":"Root has patched CVE-2026-89418 in the google-protobuf package for Root:npm. Multiple fixed versions available.","status":"published","published":"2026-09-24T10:05:43Z","modified":"2026-09-24T11:15:03.217807878Z","updated_at":"2026-11-02T15:53:27.649662Z"}]}}