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{"bugzilla": {"description": "Google Chrome: Chromium: Google Chrome: Cross-origin data leak via insufficient CORS policy enforcement", "id": "2458781", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2458781"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.8", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-346", "details": ["A flaw was found in Google Chrome. Insufficient policy enforcement in Cross-Origin Resource Sharing (CORS) could allow a remote attacker, after compromising the renderer process, to leak cross-origin data. This exploitation occurs when a user visits a crafted HTML page, leading to unauthorized information disclosure."], "name": "CVE-2026-6313", "public_date": "2026-04-15T19:04:54Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-6313\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-6313\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop_15.html\nhttps://issues.chromium.org/issues/498765210"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[147.0.7727.101,147.0.7727.101)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "Chrome", "source": "cna", "vendor": "Google"}, "product": "chrome", "vendor": "google"}], "analysis": {"en": {"generated_at": "2026-04-17T07:53:35.638249+00:00", "value": {"mitigation_remediation": ["Upgrade Google Chrome to version 147.0.7727.101 or later on all affected machines.", "Ensure Chrome automatic updates are enabled or proactively check for updates to apply future patches.", "Enable Chrome\u2019s Site Isolation feature (set the policy SiteIsolationEnabled to true) to further harden renderer process boundaries and reduce potential data leakage."], "summary": {"action": "Immediate patch", "impact": "Remote cross\u2011origin data leakage"}, "threat_synthesis": {"affected_systems": "Google Chrome versions released before 147.0.7727.101 are vulnerable. The issue appears on the stable channel of Chrome. All users running a version earlier than 147.0.7727.101 are affected until the patch for the stable channel is deployed.", "description_and_impact": "This vulnerability allows a remote attacker who has already compromised the Chrome renderer process to read cross\u2011origin data through a crafted HTML page. The failure is due to insufficient enforcement of the CORS policy, meaning the browser fails to block or properly restrict such cross\u2011origin requests. Consequently the attacker can gain confidential information from other origins, resulting in an information disclosure. The flaw is listed with Chromium security severity \u201cHigh\u201d.", "risk_and_exploitability": "The CVE record has a CVSS score of 3.1, and it is not listed in the CISA KEV catalog. The EPSS score is below 1%, indicating a very low likelihood of exploitation at this time. The vulnerability requires that the attacker first succeed in compromising the Chrome renderer process, which is non\u2011trivial and limits the likelihood of exploitation in a public setting. However, given the high Chromium security severity and the ease with which the renderer process could be exploited by other flaws, the risk should be considered significant until the issue is fixed."}}}}, "created": "2026-04-15T22:00:06.469414+00:00", "updated": "2026-04-17T08:00:11.100755+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}