Vulnerability in Razrfalcon Roxmltree
CVE-2026-92987
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.006 (50.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 50th percentile — 50.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/RazrFalcon/roxmltree/issues/153 (issue-tracking)
- github.com/RazrFalcon/roxmltree (product)
- github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/parse.rs (technical-description)
- github.com/RazrFalcon/roxmltree/blob/v0.21.1/src/lib.rs (technical-description)
- www.vulncheck.com/advisories/roxmltree-through-0.21.1-denial-of-service-via-qua… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-92987?
- CVE-2026-92987 is a high-severity vulnerability in Razrfalcon Roxmltree, classified under Inefficient Algorithmic Complexity. CVSS score: 7.5/10. Published 2026-09-17.
- How severe is CVE-2026-92987?
- High severity. CVSS v3 base score is 7.5 out of 10.