CVE-2026-45186
CVSS Score
2.9
EPSS Score
0.0%
EPSS Percentile
0th
In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.
| CWE | CWE-407 |
| Vendor | libexpat project |
| Product | libexpat |
| Published | May 10, 2026 |
| Last Updated | May 11, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
Affected Versions
libexpat project / libexpat
0 < 2.8.1