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archive/Patch now/AIR-2026-0080
closedclosed 24 Jul 2026Patch now2 Disclosed vulnerabilityAI

CVE-2026-59714: Open WebUI arbitrary message overwrite vulnerability

Open WebUI

Open WebUI contained a vulnerability allowing authenticated users to overwrite message content in channels they do not belong to. The flaw was fixed in version 0.10.0.

disclosed CVENo confirmed exploitation, so this record is tracked as a disclosed vulnerability and not counted as an incident. It moves into the counts if CISA or the vendor confirms exploitation. Why

CVSS
7.1
EPSS
<0.01 · top 59% · 2026-11-13
EPSS scores by FIRST
fix status
Fix status unknown
first report
24 Jul 2026
last update
13 Aug 2026
CVE ids
CVE-2026-59714other records

Timeline · 2

  1. 24 Jul 2026CVE-2026-59714: Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)
  2. 13 Aug 2026CVE-2026-59714: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.

Sources · 2

Advisories and databases

  1. 2026-07-24
    CVE-2026-59714: Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)
    GitHub Advisory Database · github.com/advisories/GHSA-x2ff-v5v8-m75m
  2. 2026-08-13
    CVE-2026-59714: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.
    NVD · nvd.nist.gov/vuln/detail/CVE-2026-59714

Titles and links belong to their publishers. The summary above is written by gcdRadar in its own words; data is CC BY-SA 4.0.

Classification

lane
Patch now
AI role
Attack on AI
categories
Infrastructure vulnerability
severity
2 · Disclosed vulnerability
fix status
Fix status unknown
targets
Framework / tooling
owasp llm top 10
LLM03:2025 Supply Chain
mitre atlas
no technique for these categories
tags
openwebui
dates
happened 13 Aug 2026 · first reported 24 Jul 2026
origin
NVD
Vulnerability record from NVD / the GitHub Advisory Database. This product uses the NVD API but is not endorsed or certified by the NVD.
record
confidence 0.95 · created 2026-10-18 06:33Z · updated 2026-10-18 07:00Z

Lane, AI role, categories and severity come from the classifier; the OWASP and ATLAS rows are derived from the categories. How these are assigned

Copy a brief

This record as a short Markdown brief, for a ticket, a chat or a coding agent.

the brief as text
# CVE-2026-59714: Open WebUI arbitrary message overwrite vulnerability

https://gcdradar.vercel.app/incidents/cve-2026-59714-open-webui-arbitrary-message-overwrite-vulner · AIR-2026-0080 · closed 2026-07-24

- Lane: Patch now
- Severity: 2 (Disclosed vulnerability)
- Fix status: Fix status unknown
- First reported: 2026-07-24 (happened 2026-08-13)
- AI role: Attack on AI
- Products: Open WebUI
- CVE ids: CVE-2026-59714
- CVSS: 7.1

## Summary

Open WebUI contained a vulnerability allowing authenticated users to overwrite message content in channels they do not belong to. The flaw was fixed in version 0.10.0.

## What to do

No action recorded; read the sources below and the vendor's advisory.

## Latest updates

- 2026-08-13: CVE-2026-59714: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. (https://nvd.nist.gov/vuln/detail/CVE-2026-59714)
- 2026-07-24: CVE-2026-59714: Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids) (https://github.com/advisories/GHSA-x2ff-v5v8-m75m)

## Sources

- 2026-07-24 GitHub Advisory Database: CVE-2026-59714: Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids) https://github.com/advisories/GHSA-x2ff-v5v8-m75m
- 2026-08-13 NVD: CVE-2026-59714: Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. https://nvd.nist.gov/vuln/detail/CVE-2026-59714

Verify against the vendor's advisory before changing production. Data CC BY-SA 4.0, https://gcdradar.vercel.app.

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