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TI-2026-28216 Aliases CVE-2026-38822GHSA-2h6c-w4mg-27v5

OS command injection in openNDS

Priority MEDIUM 40CWE-78Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02279 83rd percentileScored 2026-11-07
Fix Fixed openNDS (openNDS): 11.0.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
openNDSopenNDSbefore 11.0.011.0.0Patch availableCNA
  • openNDS VendoropenNDS Affected before 11.0.0 Fixed in 11.0.0 Patch available CNA

Remediation

  • Fix · CNA openNDS (openNDS) Fixed in 11.0.0

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    openNDS 11.0.0

    4 records Highest priority Priority MEDIUM 2 MEDIUM, 2 LOW

    Other records, highest priority first

    Show all 4 records →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-38822
  2. 2026-10-03 Alias added: GHSA-2h6c-w4mg-27v5

References

Other 1

  • TI-2023-19721 An issue was discovered in OpenNDS before 10.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2023-21723 An issue was discovered in the captive portal in OpenNDS before version 10.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2023-19715 An issue was discovered in OpenNDS before 10.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2023-19714 An issue was discovered in OpenNDS Captive Portal before version 10.1.2. CVSS 3.1CRITICAL 9.8
  • TI-2023-19717 An issue was discovered in OpenNDS before 10.1.3. CVSS 3.1CRITICAL 9.8
  • TI-2023-19716 An issue was discovered in OpenNDS before 10.1.3. CVSS 3.1CRITICAL 9.8
See all 17 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences