{"id":"CVE-2025-9866","aliases":["ALPINE-CVE-2025-9866","DEBIAN-CVE-2025-9866","DSA-5993-1","EUVD-2025-26672","GHSA-5g75-w57p-pj3x","openSUSE-SU-2025:15524-1"],"status":"published","title":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a...","description":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)","severity":{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00507,"percentile":0.43781,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-693"],"published":"2025-09-03T16:17:48Z","modified":"2026-11-03T06:33:01Z","fixes":[{"ecosystem":"Alpine:v3.22","package":"qt6-qtwebengine","fixed_in":["6.8.3-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.23","package":"qt6-qtwebengine","fixed_in":["6.9.2-r1"],"sources":["osv"]},{"ecosystem":"Alpine:v3.24","package":"qt6-qtwebengine","fixed_in":["6.9.2-r1"],"sources":["osv"]},{"ecosystem":"Debian:12","package":"chromium","fixed_in":["140.0.7339.80-1~deb12u1"],"sources":["osv"]},{"ecosystem":"Debian:13","package":"chromium","fixed_in":["140.0.7339.80-1~deb13u1"],"sources":["osv"]},{"ecosystem":"Debian:14","package":"chromium","fixed_in":["140.0.7339.80-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Alpine:v3.22","package":"qt6-qtwebengine","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.8.3-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.23","package":"qt6-qtwebengine","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.2-r1"}]}]},{"source":"osv","ecosystem":"Alpine:v3.24","package":"qt6-qtwebengine","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.9.2-r1"}]}]},{"source":"osv","ecosystem":"Debian:12","package":"chromium","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"140.0.7339.80-1~deb12u1"}]}],"versions":["113.0.5672.126-1","114.0.5735.106-1","114.0.5735.106-1~deb11u1","114.0.5735.106-1~deb12u1","114.0.5735.133-1","114.0.5735.133-1~deb11u1","114.0.5735.133-1~deb12u1","114.0.5735.198-1","114.0.5735.198-1~deb11u1","114.0.5735.198-1~deb12u1","114.0.5735.90-1","114.0.5735.90-2","114.0.5735.90-2~deb11u1","114.0.5735.90-2~deb12u1","115.0.5790.102-1","115.0.5790.102-2","115.0.5790.170-1","115.0.5790.170-1~deb11u1","115.0.5790.170-1~deb12u1","115.0.5790.98-1","115.0.5790.98-1~deb11u1","115.0.5790.98-1~deb12u1","115.0.5790.98-2","116.0.5845.110-1","116.0.5845.110-1~deb11u1","116.0.5845.110-1~deb12u1","116.0.5845.110-2","116.0.5845.140-1","116.0.5845.140-1~deb11u1","116.0.5845.140-1~deb12u1","116.0.5845.180-1","116.0.5845.180-1~deb11u1","116.0.5845.180-1~deb12u1","116.0.5845.96-1","116.0.5845.96-1~deb11u1","116.0.5845.96-1~deb12u1","116.0.5845.96-2","117.0.5938.132-1","117.0.5938.132-1~deb11u1","117.0.5938.132-1~deb12u1","117.0.5938.132-2","117.0.5938.149-1","117.0.5938.149-1~deb11u1","117.0.5938.149-1~deb12u1","117.0.5938.62-1","117.0.5938.62-1~deb11u1","117.0.5938.62-1~deb12u1","117.0.5938.92-1","118.0.5993.117-1","118.0.5993.117-1~deb11u1","118.0.5993.117-1~deb12u1","118.0.5993.70-1","118.0.5993.70-1~deb11u1","118.0.5993.70-1~deb12u1","119.0.6045.105-1","119.0.6045.105-1~deb11u1","119.0.6045.105-1~deb12u1","119.0.6045.123-1","119.0.6045.123-1~deb11u1","119.0.6045.123-1~deb12u1","119.0.6045.159-1","119.0.6045.159-1~deb11u1","119.0.6045.159-1~deb12u1","119.0.6045.199-1","119.0.6045.199-1~deb11u1","119.0.6045.199-1~deb12u1","120.0.6099.109-1","120.0.6099.109-1~deb11u1","120.0.6099.109-1~deb12u1","120.0.6099.129-1","120.0.6099.129-1~deb11u1","120.0.6099.129-1~deb12u1","120.0.6099.199-1","120.0.6099.199-1~deb11u1","120.0.6099.199-1~deb12u1","120.0.6099.216-1","120.0.6099.216-1~deb11u1","120.0.6099.216-1~deb12u1","120.0.6099.224-1","120.0.6099.224-1~deb11u1","120.0.6099.224-1~deb12u1","120.0.6099.224-2","120.0.6099.71-1","120.0.6099.71-1~deb11u1","120.0.6099.71-1~deb12u1","121.0.6167.139-1","121.0.6167.139-1~deb12u1","121.0.6167.160-1","121.0.6167.160-1~deb12u1","121.0.6167.85-1","121.0.6167.85-1~deb12u1","122.0.6261.111-1","122.0.6261.111-1~deb12u1","122.0.6261.128-1","122.0.6261.128-1~deb12u1","122.0.6261.57-1","122.0.6261.57-1~deb12u1","122.0.6261.94-1","122.0.6261.94-1~deb12u1","123.0.6312.105-1","123.0.6312.105-1~deb12u1","123.0.6312.105-1~deb13u1","123.0.6312.105-2","123.0.6312.122-1","123.0.6312.122-1~deb12u1","123.0.6312.58-1","123.0.6312.86-1","123.0.6312.86-1~deb12u1","124.0.6367.118-1","124.0.6367.118-1~deb12u1","124.0.6367.155-1","124.0.6367.155-1~deb12u1","124.0.6367.201-1","124.0.6367.201-1~deb12u1","124.0.6367.207-1","124.0.6367.207-1~deb12u1","124.0.6367.60-1","124.0.6367.60-1~deb12u1","124.0.6367.60-2","124.0.6367.78-1","124.0.6367.78-1~deb12u1","125.0.6422.112-1","125.0.6422.112-1~deb12u1","125.0.6422.141-1","125.0.6422.141-1~deb12u1","125.0.6422.60-1","125.0.6422.60-1~deb12u1","125.0.6422.76-1","125.0.6422.76-1~deb12u1","126.0.6478.114-1","126.0.6478.114-1~deb12u1","126.0.6478.126-1","126.0.6478.126-1~deb12u1","126.0.6478.126-1~deb13u1","126.0.6478.182-1","126.0.6478.182-1~deb12u1","126.0.6478.56-1","126.0.6478.56-1~deb12u1","127.0.6533.119-1","127.0.6533.119-1~deb13u1","127.0.6533.88-1","127.0.6533.88-1~deb12u1","127.0.6533.99-1","127.0.6533.99-1~deb12u1",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Notes","advisory"]},{"url":"https://issues.chromium.org/issues/379337758","tags":["Issue Tracking","Permissions Required","report"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-9866"},{"url":"https://github.com/advisories/GHSA-5g75-w57p-pj3x"},{"url":"https://security.alpinelinux.org/vuln/CVE-2025-9866","tags":["advisory"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2025-9866","tags":["advisory"]},{"url":"","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2025-9864","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-9865","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-9866","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-9867","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-9866","description":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. 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(Chromium security severity: Medium)","status":"published","published":"2025-09-03T17:15:34.987Z","modified":"2026-09-26T00:10:00.127Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-693"],"updated_at":"2026-11-02T14:11:27.145738Z"}],"osv":[{"id":"ALPINE-CVE-2025-9866","description":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. 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(Chromium security severity: Medium)","status":"published","published":"2025-09-03T17:15:34.987Z","modified":"2026-07-01T12:44:44.13254798Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:53.490346Z"},{"id":"DEBIAN-CVE-2025-9866","description":"Inappropriate implementation in Extensions in Google Chrome prior to 140.0.7339.80 allowed a remote attacker to bypass content security policy via a crafted HTML page. (Chromium security severity: Medium)","status":"published","published":"2025-09-03T17:15:34.987Z","modified":"2026-09-26T08:47:24.621688255Z","cvss":[{"version":"3.1","score":8.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:45:48.440897Z"},{"id":"DSA-5993-1","title":"chromium - security update","status":"published","published":"2025-09-05T00:00:00Z","modified":"2026-03-09T02:11:27.050239Z","updated_at":"2026-11-02T15:46:18.296714Z"},{"id":"openSUSE-SU-2025:15524-1","title":"chromedriver-140.0.7339.80-1.1 on GA media","description":"These are all security issues fixed in the chromedriver-140.0.7339.80-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-09-05T00:00:00Z","modified":"2026-03-23T04:53:53.383917Z","updated_at":"2026-11-02T16:58:37.810934Z"}]}}