CVE-2026-86139

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{"bugzilla": {"description": "libxml2: libxml2: Integer overflow in xmlURIEscapeStr may lead to arbitrary code execution", "id": "2528991", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528991"}, "csaw": false, "cwe": "CWE-190", "details": ["A flaw was found in libxml2. An integer overflow vulnerability exists in the `xmlURIEscapeStr` function within `uri.c`. This flaw could potentially lead to memory corruption, allowing an attacker to achieve information disclosure or arbitrary code execution."], "name": "CVE-2026-86139", "package_state": [{"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "libxml2", "product_name": "Red Hat Hardened Images"}, {"cpe": "cpe:/a:redhat:hummingbird:1", "fix_state": "Affected", "package_name": "swift-lang", "product_name": "Red Hat Hardened Images"}], "public_date": "2026-09-05T04:23:14Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-86139\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-86139\nhttps://github.com/GNOME/libxml2/commit/8edbbdb09f24d26a2f900141fddc2b9d014f53b0\nhttps://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4"], "threat_severity": "Moderate"}

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