CVE-2026-92987 PUBLISHED

roxmltree through 0.21.1 performs quadratic-time attribute and namespace validation during XML parsing without limits on attribute count. Attackers can craft XML documents with tens of thousands of attributes on a single element to consume excessive CPU time and cause denial of service.

• trickyfalcon reporter

• GitHub Issue #153
• https://github.com/RazrFalcon/roxmltree
• https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/parse.rs#L1014-L1020
• https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/lib.rs#L751-L755
• VulnCheck Advisory: roxmltree through 0.21.1 Denial of Service via Quadratic Parsing

• Inefficient Algorithmic Complexity CWE