CVE-2026-63278

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{"bugzilla": {"description": "libreoffice: LibreOffice: Information disclosure via crafted URLs expanding environment variables", "id": "2537957", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2537957"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.0", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-914", "details": ["A flaw was found in LibreOffice. A remote attacker could craft a malicious document containing specially constructed URLs. When a user opens this document, these URLs could expand environment variables or INI file values, leading to the exfiltration of potentially sensitive information to a remote server. This vulnerability allows for unauthorized disclosure of local system configuration or user-specific data."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, users should exercise caution and avoid opening LibreOffice documents from untrusted sources. This vulnerability relies on user interaction with a crafted document to trigger the information disclosure."}, "name": "CVE-2026-63278", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "libreoffice", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-09-22T11:10:36Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-63278\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-63278\nhttps://www.libreoffice.org/about-us/security/advisories/cve-2026-63278"], "threat_severity": "Moderate"}

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