CVE-2026-109286— Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal
Quick assessment
Affected
open-webui open-webui
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Open WebUI 在 0.7.0 到 0.11.4 版本之间存在跨域消息处理漏洞（漏洞位于 SyncStatsModal 模块）。该漏洞允许任意恶意网站通过提交未经校验的 消息，窃取已登录用户的会话令牌（session token）。 攻击者可以构造一个包含路径遍历（path-traversal）的聊天 ID，将经过身份认证的统计信息导出请求重定向至 接口，从而获取受害者的 JWT（JSON Web Token），获得对 API 的完全访问权限。
Possible ATT&CK Techniques 1 AI
T1110 · Brute ForceAffected Version Matrix 2
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| open-webui | open-webui | 0.7.0< 0.11.4 |
affected |
0.11.4 |
unaffected |
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I. Basic Information for CVE-2026-109286
Vulnerability Information
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Vulnerability Title
Open WebUI 0.7.0 before 0.11.4 Session Token Theft via SyncStatsModal
Source: CVE Program / CVE List V5
Vulnerability Description
Open WebUI from 0.7.0 before 0.11.4 contains a cross-origin message handling vulnerability in SyncStatsModal that allows any website to steal a signed-in user's session token by posting unvalidated verify:chat messages. Attackers can supply a path-traversal chat id redirecting the authenticated stats export request to the auths endpoint, receiving the victim's JWT for full API access.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
源验证错误
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| open-webui | open-webui | 0.7.0 ~ 0.11.4 | - |
|
II. Public POCs for CVE-2026-109286
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-109286 (2)
Same Patch Batch · open-webui · 2026-10-12 · 19 CVEs total
| CVE-2026-109572 | 7.6 HIGH | Open WebUI 0.8.6 before 0.11.4 Privilege Escalation via Terminal Proxy |
| CVE-2026-109290 | 7.3 HIGH | Open WebUI 0.11.1 before 0.11.4 Stored XSS via DOCX Preview |
| CVE-2026-109291 | 7.3 HIGH | Open WebUI 0.6.33 before 0.11.4 Stored XSS via Citation embed_url |
| CVE-2026-109292 | 6.8 MEDIUM | Open WebUI 0.6.27 before 0.11.4 Session Token Disclosure via OAuth-Mode Connections |
| CVE-2026-109299 | 6.5 MEDIUM | Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurrence Rule Validation |
| CVE-2026-109295 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 ReDoS via grep_knowledge_files Event Loop |
| CVE-2026-109298 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowledge Search Regex |
| CVE-2026-109297 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Denial of Service via Automation Recurrence Rules |
| CVE-2026-109293 | 6.5 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Tool Source Disclosure via Tool Export Endpoint |
| CVE-2026-109294 | 6.5 MEDIUM | Open WebUI 0.6.42 before 0.11.4 Memory Exhaustion via Compressed Remote Image |
| CVE-2026-109288 | 6.4 MEDIUM | Open WebUI before 0.11.4 Stored XSS via javascript: URLs in Markdown Links |
| CVE-2026-109289 | 6.3 MEDIUM | Open WebUI 0.8.8 before 0.11.4 Improper Session Revocation via Terminal WebSocket |
| CVE-2026-109283 | 5.4 MEDIUM | Open WebUI 0.11.1 before 0.11.4 Authorization Bypass via OAuth Token Exchange |
| CVE-2026-109285 | 5.0 MEDIUM | Open WebUI 0.6.0 before 0.11.4 Improper Access Control via Stale File Metadata |
| CVE-2026-109300 | 4.6 MEDIUM | Open WebUI 0.6.31 before 0.11.4 Stored XSS via Tool-Call Embeds |
| CVE-2026-109296 | 4.3 MEDIUM | Open WebUI before 0.11.4 Missing Authorization via Backend Index on Model Routes |
| CVE-2026-109287 | 4.3 MEDIUM | Open WebUI 0.9.6 before 0.11.4 Information Disclosure via Unscoped Directory ID |
| CVE-2026-109284 | 4.3 MEDIUM | Open WebUI 0.11.0 before 0.11.4 Improper Authorization via Chat Fork Endpoint |
IV. Related Vulnerabilities
Same product: open-webui
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CVE-2026-109572
Open WebUI 0.8.6 before 0.11.4 Privilege Escalation via Term -
CVE-2026-109300
Open WebUI 0.6.31 before 0.11.4 Stored XSS via Tool-Call Emb -
CVE-2026-109299
Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurre -
CVE-2026-109298
Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowle -
CVE-2026-109297
Open WebUI 0.11.0 before 0.11.4 Denial of Service via Automa
Same vendor: open-webui
-
CVE-2026-109572
Open WebUI 0.8.6 before 0.11.4 Privilege Escalation via Term -
CVE-2026-109300
Open WebUI 0.6.31 before 0.11.4 Stored XSS via Tool-Call Emb -
CVE-2026-109299
Open WebUI 0.9.0 before 0.11.4 Denial of Service via Recurre -
CVE-2026-109298
Open WebUI 0.11.0 before 0.11.4 Memory Exhaustion via Knowle -
CVE-2026-109297
Open WebUI 0.11.0 before 0.11.4 Denial of Service via Automa
Same weakness: CWE-346
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CVE-2026-101897
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CVE-2026-96238
.NET Security Feature Bypass Vulnerability -
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Azure Key Vault Information Disclosure Vulnerability
V. Comments for CVE-2026-109286
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