CVE-2026-85688Public exploitNetwork attack vector

Unauthenticated file read and write via raw paths

Published Sep 4, 2026 · Updated Sep 4, 2026

Missing authentication in TEN Framework 0.11.71 allows remote attackers to read or write arbitrary files through TMAN Designer. Its file-content handlers pass caller-supplied paths directly to read_to_string, create_dir_all, and write without authentication or path confinement. Network access to the default Designer listener is sufficient to disclose process-readable data or place content in writable paths, including files that enable code execution.

CVSS severity9.3
Critical
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authentication in TEN Framework 0.11.71 allows remote attackers to read or write arbitrary files through TMAN Designer. Its file-content handlers pass caller-supplied paths directly to read_to_string, create_dir_all, and write without authentication or path confinement. Network access to the default Designer listener is sufficient to disclose process-readable data or place content in writable paths, including files that enable code execution.

The record

CVE
CVE-2026-85688
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
TEN Framework
Product
TEN Framework
Classifications
CWE-306, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <=0.11.71

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TEN Framework · TEN Frameworkversion=0 <=0.11.71

Published CVSS scores

9.8VulnCheckCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3VulnCheckCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-306Missing Authentication for Critical Function
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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