CVE-2026-59215

ℹ️ low

Summary

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, channel thread parent and reply handling did not bind parent_id to the channel in the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose thread context across channels. This issue is fixed in version 0.10.0.

CVSS Score

3.1

Low

EPSS Score

0.3

Exploit Probability

Published Date

2026-07-09

First Seen: 2026-07-10

📊 Relative Risk Intelligence

This CVE is Lower Risk - more severe than 2.1% of all 338,292 vulnerabilities in our database.

#331,274

Below average severity

Severity Percentile

🎯 CISA SSVC Assessment Updated: Jul 9, 2026

🔍 Exploitation Status

Poc

Proof-of-concept available

⚙️ Automatable

Requires human interaction

💥 Technical Impact

Partial

Limited system impact

SSVC data provided by CISA

Last Modified 2026-07-13

Source NVD 🔗

CVSS Vector 3.1 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N

CWE IDs (Weakness Types)

CWE-639

📦 Affected Products 1

Vendor	Product	Status	Affected Versions
openwebui	open_webui	Affected	< 0.10.0

🔗 References 4

https://github.com/open-webui/open-webui/commit/a664...

Patch

https://github.com/open-webui/open-webui/pull/25766

Issue Tracking Patch

https://github.com/open-webui/open-webui/releases/ta...

Product Release Notes

https://github.com/open-webui/open-webui/security/ad...

Mitigation Vendor Advisory

🔗 Related CVEs 6

CVE ID	Severity	CVSS	EPSS	Summary	Published
CVE-2026-56398	⚠️ high	7.3	0.3	Open WebUI before 0.9.5 contains a stored cross-site scripting vulnerability in the OAuth authentication flow where the ...	2026-07-15
CVE-2026-56400	⚠️ high	8.3	0.3	open-webui before 0.3.14 contains a cross-origin resource sharing misconfiguration allowing arbitrary origins with allow...	2026-07-15
CVE-2026-59212	🔶 medium	5.4	0.3	Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 before 0.10.0, _verify_...	2026-07-09
CVE-2026-59213	ℹ️ low	3.5	0.3	Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, get_all...	2026-07-09
CVE-2026-59214	⚠️ high	7.3	0.3	Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, Open WebUI runs c...	2026-07-09
CVE-2026-59216	⚠️ high	7.7	0.3	Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, get_event_call de...	2026-07-09

These CVEs affect the same products