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{"bugzilla": {"description": "chromium-browser: Incorrect security UI in Fullscreen", "id": "2456801", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2456801"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-1021", "details": ["An incorrect security ui flaw was found in the Fullscreen component of the Chromium browser.\nUpstream bug(s):\nhttps://code.google.com/p/chromium/issues/detail?id=480993682"], "name": "CVE-2026-5882", "public_date": "2026-04-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-5882\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-5882\nhttps://chromereleases.googleblog.com/2026/04/stable-channel-update-for-desktop.html\nhttps://issues.chromium.org/issues/480993682"], "statement": "Red Hat Product Security rates the severity of this flaw as determined by the Google Chrome Security Advisory.", "threat_severity": "Moderate"}

{"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": "2026-04-14T21:40:11.588979+00:00", "value": {"mitigation_remediation": ["Upgrade Google Chrome to version 147.0.7727.55 or newer.", "Verify that the browser displays the correct security UI in fullscreen mode.", "Avoid entering fullscreen on untrusted sites until a patch is applied."], "summary": {"action": "Patch", "impact": "UI Spoofing"}, "threat_synthesis": {"affected_systems": "Google Chrome browsers prior to version 147.0.7727.55 on all supported platforms (Windows, macOS, Linux) are affected.", "description_and_impact": "The vulnerability involves incorrect rendering of the security UI when Chrome enters fullscreen mode. An attacker can serve a crafted HTML page that triggers fullscreen and displays a fake security banner, potentially misleading users into trusting a malicious site. This exploit can be used for social\u2011engineering attacks, phishing, or otherwise manipulating user trust.", "risk_and_exploitability": "The CVSS score of 4.3 indicates a medium severity. EPSS less than 1\u202f% suggests low probability of exploitation. The vulnerability is not listed in the CISA KEV catalog. Attackers would need to deliver a malicious web page that directs Chrome to enter fullscreen; no additional privileges are required."}}}}, "created": "2026-04-09T08:17:20.544190+00:00", "updated": "2026-04-15T16:15:11.921693+00:00", "vendors": ["google", "google$PRODUCT$chrome"]}