CVE-2026-33490
1 advisory.
npm/h3 CVE-2026-33490: low 3.7, EPSS 0.29%
h3: Missing Path Segment Boundary Check in `mount()` Causes Middleware Execution on Unrelated Prefix-Matching Routes
Action: Upgrade h3 to 2.0.1-rc.17 or later.
npm i h3@2.0.1-rc.17Affected
| introduced | fixed | last affected |
|---|---|---|
| 2.0.1-alpha.0 | 2.0.1-rc.17 | - |
Fixed versions
| 2.0.1-rc.17 |
Sources
- osv: GHSA-2j6q-whv2-gh6w
- https://github.com/h3js/h3/security/advisories/GHSA-2j6q-whv2-gh6w
- https://nvd.nist.gov/vuln/detail/CVE-2026-33490
- https://github.com/h3js/h3
CVE-2026-33490 · published · modified · JSON