CVE-2026-26327: Openclaw OpenClaw Allows Unauthenticated Discovery TXT Vulnerability

{
  "schema_version" : "1.4.0",
  "id" : "GHSA-pv58-549p-qh99",
  "modified" : "2026-02-20T16:45:30Z",
  "published" : "2026-02-18T00:33:35Z",
  "aliases" : [ "CVE-2026-26327" ],
  "summary" : "OpenClaw allows unauthenticated discovery TXT records to steer routing and TLS pinning",
  "details" : "## Summary\n\nDiscovery beacons (Bonjour/mDNS and DNS-SD) include TXT records such as `lanHost`, `tailnetDns`, `gatewayPort`, and `gatewayTlsSha256`. TXT records are unauthenticated.\n\nPrior to the fix, some clients treated TXT values as authoritative routing/pinning inputs:\n\n- iOS and macOS: used TXT-provided host hints (`lanHost`/`tailnetDns`) and ports (`gatewayPort`) to build the connection URL.\n- iOS and Android: allowed the discovery-provided TLS fingerprint (`gatewayTlsSha256`) to override a previously stored TLS pin.\n\nOn a shared/untrusted LAN, an attacker could advertise a rogue `_openclaw-gw._tcp` service. This could cause a client to connect to an attacker-controlled endpoint and/or accept an attacker certificate, potentially exfiltrating Gateway credentials (`auth.token` / `auth.password`) during connection.\n\n## Distribution / Exposure\n\nThe iOS and Android apps are currently alpha/not broadly shipped (no public App Store / Play Store release). Practical impact is primarily limited to developers/testers running those builds, plus any other shipped clients relying on discovery on a shared/untrusted LAN.\n\nCVSS can still be used for the technical (base) severity of the bug; limited distribution primarily affects environmental risk.\n\n## Affected Packages / Versions\n\n- Package: `openclaw` (npm)\n- Affected: `<= 2026.2.13` (latest published on npm as of 2026-02-14)\n- Patched: planned for `>= 2026.2.14` (not yet published at time of writing)\n\n## Fix\n\n- Clients now prefer the resolved service endpoint (SRV + A/AAAA) over TXT-provided routing hints.\n- Discovery-provided fingerprints no longer override stored TLS pins.\n- iOS/Android: first-time TLS pins require explicit user confirmation (fingerprint shown; no silent TOFU).\n- iOS/Android: discovery-based direct connects are TLS-only.\n- Android: hostname verification is no longer globally disabled (only bypassed when pinning).\n\n## Fix Commit(s)\n\n- d583782ee322a6faa1fe87ae52455e0d349de586\n\n## Credits\n\nThanks @simecek for reporting.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "openclaw"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2026.2.14"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/security/advisories/GHSA-pv58-549p-qh99"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-26327"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/commit/d583782ee322a6faa1fe87ae52455e0d349de586"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/openclaw/openclaw"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/openclaw/openclaw/releases/tag/v2026.2.14"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-345" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-02-18T00:33:35Z",
    "nvd_published_at" : "2026-02-19T23:16:26Z"
  }
}