GHSA-X6J4-VGJQ-5839

Vulnerability from github – Published: 2026-07-02 15:32 – Updated: 2026-08-28 18:31
VLAI
Details

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; the sink is still present in travelmate 2.4.6-1 and no patched version is known.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
7.7 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-58652"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-78"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-02T13:17:00Z",
    "severity": "HIGH"
  },
  "details": "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 \u0027script\u0027 and \u0027script_args\u0027 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; the sink is still present in travelmate 2.4.6-1 and no patched version is known.",
  "id": "GHSA-x6j4-vgjq-5839",
  "modified": "2026-08-28T18:31:11Z",
  "published": "2026-07-02T15:32:12Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/security/advisories/GHSA-p35r-3323-6g7g"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-58652"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/commit/0627b412ee3a760cc4bca9fc8a5b73de8f33ac10"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/commit/491f1df06645c4e0757fed4a9f0622e9ce0d300c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/commit/71d92bcc9edbc8f95858ce82a8ff5d52500005a2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/commit/d6e457a1a70a9010195edeafdc0b8eb6e3b0f7f1"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/luci/commit/f85102548ee8325bfd581a0327b210b5f7670829"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/packages/commit/0627b412ee3a760cc4bca9fc8a5b73de8f33ac10"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/packages/commit/491f1df06645c4e0757fed4a9f0622e9ce0d300c"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/packages/commit/71d92bcc9edbc8f95858ce82a8ff5d52500005a2"
    },
    {
      "type": "WEB",
      "url": "https://github.com/openwrt/packages/commit/d6e457a1a70a9010195edeafdc0b8eb6e3b0f7f1"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/luci-app-travelmate-arbitrary-command-execution-via-uci-script-parameter"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}



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