CVE-2026-92987 roxmltree - Denial of Service

roxmltree through 0.21.1 contains a denial of service caused by quadratic-time attribute and namespace validation during XML parsing without limits on attribute count, letting attackers consume excessive CPU time, exploit requires crafted XML documents with many attributes.

CVSS base score 7.5 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.63% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published
17 September 2026
Updated
15 October 2026
Weakness
CWE-407

Vendor fix

Update to the latest version of roxmltree.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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