CVE-2026-7210
HighCVSS 7.5Exploitation Probability (EPSS)
Elevated risk54th percentile - higher than 54% of all known CVEs
Summary
`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, allowing a crafted XML document to trigger hash flooding.
Risk Assessment
An attacker could exploit this vulnerability to perform a hash flooding attack, potentially leading to denial of service or degraded performance of XML processing applications.
Recommendation
It is recommended to update libexpat to version 2.8.0 or later and apply the appropriate patch to fully mitigate this vulnerability.
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Original NVD description (English source)
`xml.parsers.expat` and `xml.etree.ElementTree` use insufficient entropy for Expat hash-flooding protection, which allows a crafted XML document to trigger hash flooding.\r\n\r\nFully mitigating this vulnerability requires both updating libexpat to 2.8.0 or later and applying this patch.