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TI-2026-42217 Aliases CVE-2026-58652GHSA-x6j4-vgjq-5839

luci-app-travelmate - Arbitrary Command Execution via UCI Script Parameter

Priority HIGH 69CWE-78Published · Updated

Key facts

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

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-78.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00672 52nd percentileScored 2026-11-07
Fix Fixed travelmate (openwrt): 2.4.6-2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
openwrtluci-app-travelmate2.4.5-r3 and later—No fix listedCNA
openwrttravelmatebefore 2.4.6-22.4.6-2Patch availableCNA
  • luci-app-travelmate Vendoropenwrt Affected 2.4.5-r3 and later Fixed in — No fix listed CNA
  • travelmate Vendoropenwrt Affected before 2.4.6-2 Fixed in 2.4.6-2 Patch available CNA

Remediation

  • Fix · CNA travelmate (openwrt) Fixed in 2.4.6-2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-58652
  2. 2026-10-03 Alias added: GHSA-x6j4-vgjq-5839
  3. 2026-10-29 Fix available: openwrt/[email protected] · CNA

References

Patch 3

Advisory 1

  • TI-2026-79903 Stack buffer overflow in odhcpd DHCPv6 IA reply handling CVSS 3.1CRITICAL 9.8
  • TI-2024-13053 Improper input validation in MediaTek MT6890, MT7915, MT7916, MT7981, MT7986 CVSS 3.1CRITICAL 9.8
  • TI-2026-79901 Use-after-free in odhcpd DHCPv6 IA handling CVSS 4.0HIGH 8.8
  • TI-2026-48502 OpenWrt luci-app-bmx7 Path Traversal via bmx7-info CVSS 4.0HIGH 8.7
  • TI-2026-44407 luci-app-banip Log Monitor IP Extraction Bypass CVSS 4.0HIGH 8.7
  • TI-2026-51067 luci-app-openvpn Path Traversal RCE via instance_name2 CVSS 4.0CRITICAL 9.4
See all 168 →

Sources

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