7.5High
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.
What this means for your business
- An attacker can use it remotely, over a network, without a login, and without anyone at your company clicking anything.
What to do
- 1Ask your IT team or provider whether any of your systems use the affected product.
- 2If you do, follow the vendor's guidance. No patch reference has been published yet.
Not sure if your company is exposed?
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Scoring
- CVSS
- 7.5 (v3.1)
- Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- CVSS v4
- 8.7
- Weakness
- CWE-407
- Assigned by
- disclosure@vulncheck.com
Dates
- Published
- 2026-09-17
- Last modified
- 2026-09-17
- Sources
- NVD
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