CVE-2026-7210
⚠️ highSummary
`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.
CVSS Score
7.5
High
EPSS Score
0.8
Exploit Probability
Published Date
2026-05-11
First Seen: 2026-05-12
📊 Relative Risk Intelligence
This CVE is Moderate Risk - more severe than 68.9% of all 329,456 vulnerabilities in our database.
#102,448
Above average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: May 11, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
Stan Ulbrych (https://github.com/StanFromIreland) (coordinator)
Gregory P. Smith (https://github.com/gpshead) (remediation reviewer)
SSVC data provided by
CISA
Last Modified
2026-06-15
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS Vector 4.0
CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE IDs (Weakness Types)