What’s Vulnerable › Vulnerabilities
CVE-2026-38822
- Severity: high (CVSS 7.6 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 2.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-28 · updated 2026-09-09
- Weakness: CWE-78
Description
In openNDS before 11.0.0, the client_params.sh script, invoked by the openNDS daemon to serve the authenticated client status page, is vulnerable to OS command injection through crafted HTTP GET query parameter keys. An authenticated captive portal user can inject arbitrary shell commands by embedding semicolons in a URL query parameter name.
Affected products
- openNDS: before 11.0.0 — fixed in 11.0.0
How to fix
Upgrade to a fixed version: openNDS 11.0.0. Check the vendor advisory for mitigations.
References
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