Advisory details:
github_osv / GHSA-pv58-549p-qh99
| Advisory ID | github_osv/GHSA-pv58-549p-qh99 |
| Aliases |
CVE-2026-26327
|
| Summary | OpenClaw allows unauthenticated discovery TXT records to steer routing and TLS pinning ## Summary Discovery beacons (Bonjour/mDNS and DNS-SD) include TXT records such as `lanHost`, `tailnetDns`, `gatewayPort`, and `gatewayTlsSha256`. TXT records are unauthenticated. Prior to the fix, some clients treated TXT values as authoritative routing/pinning inputs: - iOS and macOS: used TXT-provided host hints (`lanHost`/`tailnetDns`) and ports (`gatewayPort`) to build the connection URL. - iOS and Android: allowed the discovery-provided TLS fingerprint (`gatewayTlsSha256`) to override a previously stored TLS pin. On 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. ## Distribution / Exposure The 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. CVSS can still be used for the technical (base) severity of the bug; limited distribution primarily affects environmental risk. ## Affected Packages / Versions - Package: `openclaw` (npm) - Affected: `<= 2026.2.13` (latest published on npm as of 2026-02-14) - Patched: planned for `>= 2026.2.14` (not yet published at time of writing) ## Fix - Clients now prefer the resolved service endpoint (SRV + A/AAAA) over TXT-provided routing hints. - Discovery-provided fingerprints no longer override stored TLS pins. - iOS/Android: first-time TLS pins require explicit user confirmation (fingerprint shown; no silent TOFU). - iOS/Android: discovery-based direct connects are TLS-only. - Android: hostname verification is no longer globally disabled (only bypassed when pinning). ## Fix Commit(s) - d583782ee322a6faa1fe87ae52455e0d349de586 ## Credits Thanks @simecek for reporting. |
| Status | Published |
| Exploitability | 0.5 |
| Weighted Severity | 6.4 |
| Risk | 3.2 |
| Affected and Fixed Packages | Package Details |
| Introduced and Fixed Package Commit Patches | Package Commit Patches Details |
| System | Score | Found at |
|---|---|---|
| cvssv4 | 7.1 | https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/02/GHSA-pv58-549p-qh99/GHSA-pv58-549p-qh99.json |
| generic_textual | HIGH |
No EPSS data available for this advisory.
| Patch URL | |
|---|---|
| There are no known patches. | |
| Attack Vector (AV) | Attack Complexity (AC) | Attack Requirements (AT) | Privileges Required (PR) | User Interaction (UI) | Vulnerable System Impact Confidentiality (VC) | Vulnerable System Impact Integrity (VI) | Vulnerable System Impact Availability (VA) | Subsequent System Impact Confidentiality (SC) | Subsequent System Impact Integrity (SI) | Subsequent System Impact Availability (SA) |
|---|---|---|---|---|---|---|---|---|---|---|
network adjacent local physical |
low high |
none present |
none low high |
none passive active |
high low none |
high low none |
high low none |
high low none |
high low none |
high low none |
Vector: SSVCv2/E:N/A:N/T:P/P:M/B:A/M:M/D:T/2026-02-20T15:27:12Z/
Decision: Track
Source URL: https://github.com/cisagov/vulnrichment/blob/develop/2026/26xxx/CVE-2026-26327.json
Source Advisory: vulnrichment/CVE-2026-26327
[{'Exploitation': 'none'},
{'Automatable': 'no'},
{'Technical Impact': 'partial'},
{'Mission Prevalence': 'minimal'},
{'Public Well-being Impact': 'material'},
{'Mission & Well-being': 'medium'}]