{"id":"EM-20261109-QGF1","url":"https://cyber.eventmonitor.net/incident/EM-20261109-QGF1/traq-vulnerability-cve-2026-63198/","type":"cve","title":"traQ Vulnerability (CVE-2026-63198)","subtitle":"CVE-2026-63198","subject":"CVE-2026-63198","status":"Developing","severity":"high","affected":[],"headline":null,"born":"2026-11-09T20:55:17.000Z","firstSignal":"2026-11-03T19:18:09.080Z","lastSignal":"2026-11-09T20:55:17.000Z","updated":"2026-11-09T22:10:41.103Z","revision":1,"life":[{"status":"Born","at":"2026-11-09T20:55:17.000Z","why":"second independent source: C26 GitHub Advisory Database"},{"status":"Developing","at":"2026-11-09T20:55:17.000Z","why":"signals keep joining"}],"changeLog":[{"at":"2026-11-03T19:18:09.080Z","what":"First signal: C6 NVD CVE API 2.0"},{"at":"2026-11-09T20:55:17.000Z","what":"Born: second source, C26 GitHub Advisory Database. Page EM-20261109-QGF1 created."}],"stages":[{"name":"Disclosed","at":"2026-11-03T19:18:09.080Z","detail":"C6 NVD published"},{"name":"Scored","at":"2026-11-03T19:18:09.080Z","detail":"CVSS 7.3 · EPSS 0.3%"},{"name":"Exploited","at":null,"detail":"No exploitation reported"},{"name":"Advisories","at":null,"detail":"None yet"},{"name":"Vendor Response","at":null,"detail":"None in sources yet"},{"name":"Resolved","at":null,"detail":"After 14 quiet days"}],"signals":[{"at":"2026-11-03T19:18:09.080Z","source":"C6","sourceName":"NVD CVE API 2.0","role":"Database","severity":3,"title":"CVE-2026-63198 (CVSS 7.3)","text":"traQ is a messenger application built for Digital Creators Club traP. Prior to 3.28.3, OAuth2 silent authorization requests using prompt=none with an empty or omitted scope parameter check prior consent against the empty requested scope set even though all scopes registered for the client become eligible for issuance. An attacker who controls an OAuth client capable of receiving authorization codes can target a user who previously consented to only some client scopes and obtain an access token containing broader registered scopes without additional consent. A user who has never consented to…","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-63198"},{"at":"2026-11-09T20:55:17.000Z","source":"C26","sourceName":"GitHub Advisory Database","role":"Database","severity":3,"title":"GHSA-8cfq-jgf7-8m27 / CVE-2026-63198: traQ: Privilege escalation by OAuth prompt=none request","text":"go:github.com/traPtitech/traQ","url":"https://github.com/advisories/GHSA-8cfq-jgf7-8m27"}],"crowd":[],"reference":{"nvd":{"published":"2026-11-03T19:18:09.080","score":7.3,"severity":"HIGH","desc":"traQ is a messenger application built for Digital Creators Club traP. Prior to 3.28.3, OAuth2 silent authorization requests using prompt=none with an empty or omitted scope parameter check prior consent against the empty requested scope set even though all scopes registered for the client become…","product":"","seen":1793803438877},"kev":null,"epss":{"epss":0.00256,"pct":0.17282,"at":1793803438877},"p0":false},"mergedInto":null,"publisher":"Event Monitor Cyber"}