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Vulnerability record · CVE-2026-85688 · published 4 September 2026

CVE-2026-85688: Missing authentication for critical function vulnerability

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.

9.3 CVSS 4.0 Critical EPSS 2.6% · top 15.0% CWE-306 · Missing authentication for critical function Deferred
9.3CVSS 4.0 base score
2.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
4References
24 Sep 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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:

References

LinkTags
https://github.com/TEN-framework/ten-framework
https://github.com/TEN-framework/ten-framework/blob/0.11.71/core/src/ten_manager/src/designer/file_content/mod.rs
https://github.com/TEN-framework/ten-framework/issues/2187
https://www.vulncheck.com/advisories/ten-framework-0.11.71-unauthenticated-file-read-write-via-tman-designer

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Source: NIST National Vulnerability Database (record CVE-2026-85688), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.