What’s Vulnerable › Vulnerabilities

CVE-2026-92987: roxmltree through 0.21.1 Denial of Service via Quadratic Parsing

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-09-22
• Weakness: CWE-407

Description

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.

Affected products

• RazrFalcon roxmltree: through 0.21.1

References

• https://github.com/RazrFalcon/roxmltree
• https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/lib.rs#L751-L755
• https://github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/parse.rs#L1014-L1020
• https://github.com/RazrFalcon/roxmltree/issues/153
• https://www.vulncheck.com/advisories/roxmltree-through-0.21.1-denial-of-service-via-quadratic-parsing

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