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CVE Vulnerability Details :
CVE-2026-45387
PUBLISHED
More InfoOfficial Page
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
View Known Exploited Vulnerability (KEV) details
Published At-15 May, 2026 | 20:32
Updated At-15 May, 2026 | 21:08
Rejected At-
▼CVE Numbering Authority (CNA)
Open WebUI: Sharing models for others to use (read permission) also exposes model details (system prompt leakage)

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, when setting model permissions so that a group has read access to it, intending for other users to use it, those users also can read the model's system prompt. However users may consider their system prompt confidential, so this is considered a security issue. This vulnerability is fixed in 0.9.5.

Affected Products
Vendor
open-webui
Product
open-webui
Versions
Affected
  • < 0.9.5
Problem Types
TypeCWE IDDescription
CWECWE-200CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Type: CWE
CWE ID: CWE-200
Description: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
Metrics
VersionBase scoreBase severityVector
3.14.3MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Version: 3.1
Base score: 4.3
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr
x_refsource_CONFIRM
Hyperlink: https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr
Resource:
x_refsource_CONFIRM
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr
exploit
Hyperlink: https://github.com/open-webui/open-webui/security/advisories/GHSA-h2cw-7qw9-56xr
Resource:
exploit
Details not found