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{"bugzilla": {"description": "chromium-browser: Inappropriate implementation in Navigation", "id": "2456804", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456804"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.9", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-346", "details": ["An inappropriate implementation flaw was found in the Navigation component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=490139441"], "name": "CVE-2026-5918", "public_date": "2026-04-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5918\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5918\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/490139441"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[147.0.7727.55,147.0.7727.55)"}}], "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": "2026-04-14T15:37:18.080438+00:00", "value": {"mitigation_remediation": ["Update Google Chrome to version\u00a0147.0.7727.55 or later", "Verify that the browser displays the new version in the about page", "Disable or restrict renderer processes if upgrade is not immediately possible", "Maintain up\u2011to\u2011date sandbox policies and monitor for unexpected renderer activity"], "summary": {"action": "Patch Now", "impact": "Information disclosure via cross\u2011origin data leak"}, "threat_synthesis": {"affected_systems": "The affectation is limited to Google Chrome version 147.0.7727.54 and earlier. All operating systems that run Chrome\u2014Windows, macOS, and Linux\u2014are susceptible because the flaw resides in the Chrome engine itself, not in the underlying OS. Users on any platform running the affected Chrome build are at risk until the browser is upgraded.", "description_and_impact": "A flaw in Chrome\u2019s navigation handling lets a remote attacker who has already compromised a renderer process read data belonging to other origins through a specially crafted HTML page. The vulnerability results in information disclosure, exposing data that should remain confidential to the attacking party.", "risk_and_exploitability": "The CVSS score of 4.3 categorizes the weakness as low severity, and the EPSS probability is below 1\u202f%. The vulnerability is not listed in CISA\u2019s KEV catalog. Exploitation requires the attacker to already compromise the renderer process, which typically demands more advanced or privileged access, such as malware that can take control of the rendering context. Because of this prerequisite, the risk to a general user population remains modest, though organizations that rely on strict cross\u2011origin isolation should consider the threat more seriously."}}}}, "created": "2026-04-09T08:16:36.810232+00:00", "updated": "2026-04-14T16:37:05.651403+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}