{"id":"CVE-2026-87897","aliases":["EUVD-2026-111132"],"status":"published","description":"A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.","severity":{"version":"3.0","score":4.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00203,"percentile":0.10366,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-10-27T16:15:34Z","modified":"2026-11-04T17:59:02Z","products":[{"vendor":"nextcloud","product":"whiteboard"}],"references":[{"url":"https://hackerone.com/reports/3576823"}],"sources":{"cve":[{"id":"CVE-2026-87897","description":"A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.","status":"published","published":"2026-10-27T16:15:34.742Z","modified":"2026-11-04T17:59:02.35Z","cvss":[{"version":"3.0","score":4.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-04T19:06:09.720053Z"}],"euvd":[{"id":"EUVD-2026-111132","description":"A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.","status":"published","published":"2026-10-27T16:15:34Z","modified":"2026-11-04T17:59:02Z","cvss":[{"version":"3.0","score":4.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-04T19:12:51.694741Z"}],"nvd":[{"id":"CVE-2026-87897","description":"A SSRF vulnerability found that enables access to internal Chrome Devtools Protocol APIs that can leak the JWT authentication token for another user. A low privileged attacker could continually exploit this vulnerability to leak the JWT authentication token for another user when they start a recording, which then enables the attacker read/write access to the victim's Whiteboard.","status":"published","published":"2026-10-27T17:17:03.53Z","modified":"2026-11-04T18:17:46.15Z","cvss":[{"version":"3.0","score":4.6,"vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-04T20:08:23.117709Z"}]}}