- Description
- libexpat before 2.8.4 lacks handler call depth tracking with custom encoding callbacks. Thus, a use-after-free can occur. NOTE: this is similar to CVE-2026-50219, CVE-2026-56131 and CVE-2026-56412.
- Source
- cve@mitre.org
- NVD status
- Analyzed
- Products
- libexpat
CVSS 3.1
- Type
- Primary
- Base score
- 7.8
- Impact score
- 5.9
- Exploitability score
- 1.8
- Vector string
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Severity
- HIGH
- cve@mitre.org
- CWE-416
- Hype score
- Not currently trending
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"matchCriteriaId": "885B520F-C911-4100-836F-4987072F2998",
"versionEndExcluding": "2.8.4",
"vulnerable": true
}
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"negate": false,
"operator": "OR"
}
]
}
]