AUGUST 16, 2026
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Case File

CVE-2026-70481

MEDIUM · CVSS 5.4 EPSS 0.30% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-08-04 · Last synced 2026-08-16

CyberRota Analysis

AI-Generated

The Open WebUI platform versions 0.5.0 to 0.11.0 are vulnerable due to inadequate validation in the message update and delete handlers, allowing any user with write access to modify or delete messages authored by others. This could lead to unauthorized alterations of communication, potentially impacting data integrity and user trust. Organizations using affected versions should prioritize upgrading to version 0.11.0 to mitigate these risks.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-70481
Severity
MEDIUM
CVSS
5.4
EPSS
0.30%

Original NVD Description

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.5.0 until 0.11.0, the standard channel message update and delete handlers accepted any caller holding write access on the channel without checking that the caller wrote the message. Because write access is the same grant a member needs to post, any ordinary participant in a shared standard channel could rewrite or permanently delete another participant message, while group and direct message handlers enforced authorship. This issue is fixed in 0.11.0.