Risk Letters

Exploited vulnerability

CVE-2026-85688

TLP:CLEAR

Missing Authentication for Critical Functionality

TEN Framework 0.11.71 contains unauthenticated arbitrary file read and write vulnerabilities in the TMAN Designer file-content API endpoints. Attackers can submit POST and PUT requests to the /api/designer/v1/file-content endpoints to read arbitrary files or write malicious content to system paths, enabling code execution through authorized_keys, cron files, or executable graph files.

Facts

  • Vendor: TEN-framework
  • Product: TEN Framework
  • CVSS: 9.8
  • EPSS (probability of exploitation within 30 days): 2.6 %
  • First known exploitation: 28 October 2026
  • First seen by Risk Letters: 5 September 2026

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Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD