CVE-2026-101858: RaspAP raspap-webgui OS command injection in SSID processing

CVE-2026-101858 · Severity: medium · CVSS 4.7 · Published 2026-09-29

RaspAP is a web interface for managing WiFi hotspots and networking on Raspberry Pi devices. A flaw in the SSID processing function allows remote attackers to inject arbitrary operating system commands, potentially gaining full control of the device. The vulnerability affects versions up to 3.5.5 and exploits have been publicly published.

Technologies: Raspap-Webgui. Vendors: RaspAP.

Quick answers

Is CVE-2026-101858 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-101858 being exploited in the wild.
How severe is CVE-2026-101858?
Medium severity, with a CVSS score of 4.7, published 29 September 2026.
Which products and versions are affected?
Raspap-Webgui up to 3.5.5.
Is there a fix for CVE-2026-101858?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
How is CVE-2026-101858 attacked?
It is attacked over the network, in a web application.
Am I affected by CVE-2026-101858?
Check whether you run Raspap-Webgui at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

An OS command injection vulnerability exists in the WiFiManager::writeWpaSupplicant() function in src/RaspAP/Networking/Hotspot/WiFiManager.php where the SSID parameter is not properly sanitized before being passed to shell execution. The attack is network-accessible and requires authentication to the RaspAP web interface. An authenticated attacker can execute arbitrary commands as the www-data user, which can be escalated to root via local privilege escalation in plugin_helper.sh.

Affected products

  • RaspAP raspap-webgui up to 3.5.5

Timeline

  • 2026-09-29: disclosed

References

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