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{"bugzilla": {"description": "chromium-browser: Heap buffer overflow in WebML", "id": "2456760", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456760"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-120", "details": ["A heap buffer overflow flaw was found in the WebML component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=492668885"], "name": "CVE-2026-5867", "public_date": "2026-04-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5867\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5867\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/492668885"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Important"}

{"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": "2026-04-14T15:05:57.704048+00:00", "value": {"mitigation_remediation": ["Update Chrome to build 147.0.7727.55 or newer.", "If an update is not immediately possible, disable the WebML feature via Chrome policy or flags.", "Regularly check the vendor\u2019s security advisories for additional patches or mitigations."], "summary": {"action": "Patch", "impact": "Information disclosure via memory leak"}, "threat_synthesis": {"affected_systems": "The flaw affects all versions of Google Chrome prior to build 147.0.7727.55 on macOS, Linux, and Windows operating systems.", "description_and_impact": "A heap buffer overflow occurs in the WebML component of Google Chrome when processing a crafted HTML page. The overflow allows a remote attacker to read data from the browser\u2019s process memory beyond the intended buffer, potentially exposing credentials, personal data, or other confidential information. The vulnerability is classified under buffer\u2011copy\u2011without\u2011checking\u2011size and buffer\u2011overflow weaknesses (CWE-120, CWE-122).", "risk_and_exploitability": "The CVSS base score of 4.3 indicates low\u2011to\u2011moderate severity, while an EPSS score below 1% suggests exploitation is unlikely in the wild. The vulnerability requires a crafted HTML page that the user must view, meaning social engineering or compromised sites are needed for exploitation. It is not listed in CISA\u2019s Known Exploited Vulnerabilities catalog, further reducing its immediate threat level. The likely attack vector is a remote malicious web page."}}}}, "created": "2026-04-09T08:17:35.597862+00:00", "updated": "2026-04-14T16:38:01.899712+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}