CVE-2026-85688
CriticalTEN Framework 0.11.71 contains unauthenticated arbitrary file read and write vulnerabilities in the TMAN Designer file-content API endpoints.
Published Sep 4, 2026 · Updated Sep 26, 2026
Key Facts
Patch in the next maintenance window- CVE-2026-85688 is a critical-severity vulnerability (CVSS 9.3 v4) affecting ten-framework.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 2.6% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
CVSS v4
9.3
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
EPSS (30-day exploit likelihood)
2.6%
Higher than 85.3% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
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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.
Affected Products
1 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| ten-framework | See advisory | n/a |
Timeline
Publicly disclosed
Sep 4, 2026
Last updated
Sep 26, 2026
Weakness Type
- CWE-306 Missing Authentication for Critical Function
References
- advisoryhttps://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85688.json
- advisoryhttps://nvd.nist.gov/vuln/detail/CVE-2026-85688
- otherhttps://github.com/TEN-framework/ten-framework
- otherhttps://github.com/TEN-framework/ten-framework/blob/0.11.71/core/src/ten_manager/src/designer/file_content/mod.rs
- otherGitHub Issue #2187
FAQ
Common Questions.
TEN Framework 0.11.71 contains unauthenticated arbitrary file read and write vulnerabilities in the TMAN Designer file-content API endpoints.
Affected: ten-framework. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch in the next maintenance window, because of its high severity, although no exploitation is known.
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