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Presenton Desktop Authentication Middleware app_data information disclosure

Affects Presenton Electron desktop v0.9.11-beta on Windows, macOS and Linux, where the desktop default DISABLE_AUTH=true skips authentication for app_data requests. No fix is listed in the checked facts.

Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.

Published
Last modified
Published
Not listed in CISA KEV
29/100 · provisional
Default setups
Fix
Fix or patch referenced
None on Exploit-DB, Metasploit or GitHub

Summary

Presenton, an application, is affected through its Desktop Authentication Middleware component, where a flaw in how the app_data path is handled can expose information to remote attackers. Successful exploitation would let an unauthorized party view data that should be protected.

Read the original description

A security vulnerability has been detected in Presenton up to 0.9.11-beta. This affects an unknown part of the file /app_data of the component Desktop Authentication Middleware. Such manipulation leads to information disclosure. It is possible to launch the attack remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 0.9.12-beta is able to mitigate this issue. The name of the patch is 44c8a61122b21f17642d717b0c4d6f2c54c0f180. The affected component should be upgraded.

What to do

  • Check every install: default setups are affected.

  • Apply the patch listed under Evidence.

Timeline

  1. CVE published
  2. First seen by cve.now

Affected versions

  • n/a Presenton

    0.9.11-beta

Evidence 9

  1. Advisory
  2. Advisory
  3. Advisory
  4. Advisory
  5. Patch
  6. Patch
  7. Patch
  8. Exploit
  9. Repository

Corrections

None so far.

Something wrong on this page? Report an error. Every fix is listed here.

FAQ

Questions about CVE-2026-120192

What does this mean?

The auth middleware is bypassed in the desktop build, so requests to the app_data path can be made without logging in. Through that path, the stored data can be downloaded, including API keys, OAuth tokens, password hashes, the JWT signing key, the database, logs and uploaded or generated files.Source: github.com

Am I affected, and how do I check?

Affected builds are Presenton Electron desktop v0.9.11-beta on Windows, macOS and Linux. The exposure also depends on the DISABLE_AUTH setting, which is true by default in desktop builds, and on whether at least one LLM, search or stock API key has been saved or account setup has been completed. To check the version, look at the version shown in the app or the version recorded for the installed build.Source: github.com

What should I do about it?

The checked facts do not name a fixed version or a workaround, so no upgrade target can be given from them. Check the vendor's advisory for an updated release before relying on any version.Source: github.com

Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data