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{"bugzilla": {"description": "libxml2: libxml2: Denial of Service due to NULL pointer dereference in xmlRegNewParserCtxt", "id": "2528988", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2528988"}, "csaw": false, "cvss3": {"cvss3_base_score": "2.9", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L", "status": "draft"}, "cwe": "CWE-476", "details": ["A flaw was found in libxml2. A NULL pointer dereference vulnerability exists in the `xmlRegNewParserCtxt` function within the `xmlregexp` component. This occurs because the `strlen()` function is called on a potentially NULL pointer, `ret->string`, before a check for a failed memory allocation by `xmlStrdup()`. A local attacker could exploit this by triggering an `xmlStrdup` failure, leading to a denial of service (DoS) due to a process crash."], "name": "CVE-2026-86141", "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": "2026-09-05T04:27:59Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-86141\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-86141\nhttps://github.com/GNOME/libxml2/commit/e89a8aae4c9b40cdafcf66b3f9e57c62db37bb55\nhttps://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4\nhttps://gitlab.gnome.org/GNOME/libxml2/-/work_items/1107"], "threat_severity": "Low"}