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Vulnerabilities

Security incident · CVE-2025-64496

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline.

Published Nov 8, 2025 · catalog updated Nov 13, 2025 · Open WebUI is a

Last checked Oct 28, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-64496. EPSS is 7.23%. Act only if a listed version of Open WebUI is a is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Open WebUI is a).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.3
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
7.23%
Remediation
Version ranges on file
Affected products
vendor open-webui open-webui < 0.6.35

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event (SSE) execute events. This leads to authentication token theft, complete account takeover, and when chained with the Functions API, enables remote code execution on the backend server. The attack requires the victim to enable Direct Connections (disabled by default) and add the atta

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor open-webui open-webui < 0.6.35< 0.6.35

How to fix CVE-2025-64496

  • Upgrade

    CVE-2025-64496 lists a fix boundary at 0.6.35. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 0.6.35

  • Advisory

    Open the cve_org record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-64496. EPSS is 7.23%. Act only if a listed version of Open WebUI is a is installed.

Which versions are affected?

Compare what you have installed with open-webui open-webui < 0.6.35 < 0.6.35. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 7.23%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

Timeline

Detection, updates, and resolution for this record.

  1. Nov 8, 2025 · EUVD

    Detected

    Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event (SSE) execute events. This leads to authentication token theft, complete account ta

  2. Nov 13, 2025 · EUVD

    Updated

    Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event (SSE) execute events. This leads to authentication token theft, complete account ta

Sources

  • CVE.orgVulnerability recordCVE-2025-64496

    Official CVE identifier

    cve.org
  • EUVDVulnerability recordEUVD-2025-38253

    Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Versions 0.6.224 and prior contain a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in v

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 28, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgOct 25, 2026
  • EUVDOct 25, 2026