CVE-2026-58652: luci-app-travelmate - Arbitrary Command Execution via UCI Script Parameter

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.8% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-07-02 · updated 2026-10-29
Weakness: CWE-78

Description

luci-app-travelmate (and the travelmate package) contain a privilege-escalation flaw: a LuCI/rpcd session holding the luci-app-travelmate write ACL is granted config-wide UCI write access to the travelmate configuration. While the LuCI UI restricts the auto-login script picker to /etc/travelmate/*.login, this is only a frontend restriction. The backend travelmate service (running as root) reads the raw UCI 'script' and 'script_args' values and executes the configured path when the captive-portal auto-login branch (f_check() in travelmate-functions.sh) is reached. An attacker with delegated write permissions can set script to /bin/sh and script_args to attacker-controlled arguments, resulting in arbitrary command execution as root. Confirmed in luci-app-travelmate/travelmate 2.4.5-r3; travelmate 2.4.6-1 is also affected. Fixed in travelmate 2.4.6-2, which enforces the /etc/travelmate/*.login allowlist in the backend.

Affected products

openwrt luci-app-travelmate: 2.4.5-r3
openwrt travelmate: before 2.4.6-2 — fixed in 2.4.6-2

How to fix

Upgrade to a fixed version: openwrt travelmate 2.4.6-2. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2026-58652 or the next vulnerability affects your stack