{"id":"CVE-2026-106243","title":"Incomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic","summary":"Incomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic. (Chromium security severity: High)","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","cwe":["CWE-459"],"vendor":"google","product":"chrome","affected":["chrome < 155.0.8059.39"],"patched":["chrome 155.0.8059.39"],"published":"2026-10-06","updated":"2026-10-07","sourceUpdated":"2026-10-07T13:52:32.837","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-106243","references":[{"url":"https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html","label":"chrome-cve-admin@google.com"},{"url":"https://issues.chromium.org/issues/533426590","label":"chrome-cve-admin@google.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106243.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-106243"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-106243"}],"tags":["nvd","cve.org","csaf","vex","red-hat","score-dispute"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-06T20:40:08.442444Z"},"scores":{"nvd":5.3,"vendor":8.8},"ingestedAt":"2026-10-06T19:13:33.933Z","epss":0.00107,"epssPercentile":0.01122,"slug":"CVE-2026-106243","body":"## Overview\n\nIncomplete cleanup in Proxy Auth in Google Chrome prior to 155.0.8059.39 allowed an adjacent attacker to obtain sensitive information via crafted network traffic. (Chromium security severity: High)\n\n## Affected\n\n- `chrome < 155.0.8059.39`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `chrome 155.0.8059.39`\n\n## Vendor advisories\n\n- **Red Hat VEX** · updated 2026-10-07 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-106243.json)","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216875,"id":"CVE-2026-106243","ts":1791321692516,"field":"cvss","old":null,"new":"5.3"},{"seq":216874,"id":"CVE-2026-106243","ts":1791321692516,"field":"severity","old":"none","new":"medium"}]}