CVE-2026-38822CWE-78command-injection

CVE-2026-38822

High · published August 28, 2026

CVSS v3.1
7.6
EPSS
2%
Percentile
83.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.6 · HIGH
Vector
CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
CVSS v4.0
Not supplied
EPSS
0.02279 · 83.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2026-08-28T06:16Z
References (1)
https://github.com/openNDS/openNDS/commit/294983e859bb678eef7db06fc9f6afab0b489d8e · [email protected]
EPSS history
Timeline
  • 28 AUG 00:12Z
    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…
    cvelistv5