Open WebUI: Any authenticated user can stall a worker via a knowledge-search pattern that backtracks catastrophically

SummaryThe built-in knowledge search tools let a chat participant choose the pattern used to grep knowledge files. Patterns containing regex metacharacters were compiled with Python's backtracking re engine and run against every line of every reachable file, with no time limit anywhere on that...

Open WebUI: Tool source code disclosed to read-only users via the tool list and get endpoints

SummaryA workspace tool shared with a read grant returned its full Python source to the recipient. Any authenticated non-admin who could use a shared tool could also read its source, including any user on the instance when a tool was shared publicly. Source is meant to be a writer-only tier: the...

PYSEC-2026-3650 Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages

Summary Any authenticated user can store a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. When that happens the renderer falls back to inserting the original math source into the page as HTML rather than as text, so script in the message runs in the...

Open WebUI: Any member with write access to a standard channel can edit or delete other members' messages

SummaryOn standard channels, the message update and delete handlers accepted any caller holding write access on the channel, without checking that the caller wrote the message. Write access is the same grant a member needs in order to post, so every ordinary participant in a shared channel could...

PYSEC-2026-3653 Open WebUI: SSRF into internal services via unvalidated sub-resource requests in the Playwright web loader

Summary With the Playwright web loader enabled, Open WebUI opens user-submitted URLs in a real browser and validates the destination address before allowing the request. That check only ran for the top-level page request. Every other request the page issued was passed through unvalidated, so a pa...

CVE-2026-72594

CVE-2026-72594 affects lobehub/lobe-chat up to v2.2.13. The vulnerability is a stored XSS where a low-privileged authenticated user can inject arbitrary JavaScript by uploading a crafted SVG as a user avatar. The avatar upload handler derives the stored file extension and S3 content type from the...

CVE-2026-72594 lobehub lobe-chat - Stored Cross-Site Scripting via Unrestricted SVG Avatar Upload

A stored cross-site scripting XSS vulnerability in lobehub/lobe-chat through v2.2.13 allows a low-privileged authenticated user to inject arbitrary JavaScript into the application by uploading a crafted SVG file as a user avatar...

EUVD-2026-55164

A stored cross-site scripting XSS vulnerability in lobehub/lobe-chat through v2.2.13 allows a low-privileged authenticated user to inject arbitrary JavaScript into the application by uploading a crafted SVG file as a user avatar...

CVE-2026-72594 lobehub lobe-chat - Stored Cross-Site Scripting via Unrestricted SVG Avatar Upload

A stored cross-site scripting XSS vulnerability in lobehub/lobe-chat through v2.2.13 allows a low-privileged authenticated user to inject arbitrary JavaScript into the application by uploading a crafted SVG file as a user avatar...

CVE-2026-72594

A stored cross-site scripting XSS vulnerability in lobehub/lobe-chat through v2.2.13 allows a low-privileged authenticated user to inject arbitrary JavaScript into the application by uploading a crafted SVG file as a user avatar...

CVE-2026-72591

The CVE-2026-72591 entry describes a server-side request forgery (SSRF) in the gabehf/Koito project up to v0.3.2. An authenticated user can supply a crafted image_url in PATCH /apis/web/v1/album/{id}/image, causing the server to perform HTTP requests to arbitrary internal or external hosts. The i...

EUVD-2026-55215

A server-side request forgery SSRF vulnerability in gabehf/Koito through v0.3.2 allows an authenticated user to make the server perform HTTP requests to arbitrary internal or external hosts by supplying a crafted imageurl value in the PATCH /apis/web/v1/album/id/image endpoint...

CVE-2026-72591

A server-side request forgery SSRF vulnerability in gabehf/Koito through v0.3.2 allows an authenticated user to make the server perform HTTP requests to arbitrary internal or external hosts by supplying a crafted imageurl value in the PATCH /apis/web/v1/album/id/image endpoint...

CVE-2026-72591 Koito - Authenticated Server-Side Request Forgery via Album Image URL Parameter

A server-side request forgery SSRF vulnerability in gabehf/Koito through v0.3.2 allows an authenticated user to make the server perform HTTP requests to arbitrary internal or external hosts by supplying a crafted imageurl value in the PATCH /apis/web/v1/album/id/image endpoint...

CVE-2026-72583 fastschema - Stored Cross-Site Scripting via MIME Type Bypass in File Upload

A stored cross-site scripting XSS vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check...

CVE-2026-72583

A stored cross-site scripting XSS vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check...

CVE-2026-72583 fastschema - Stored Cross-Site Scripting via MIME Type Bypass in File Upload

A stored cross-site scripting XSS vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check...

EUVD-2026-55223

A stored cross-site scripting XSS vulnerability in fastschema through v0.15.1 allows a low-privileged authenticated user to upload an SVG file containing malicious JavaScript by bypassing the MIME type allow-list check...

CVE-2026-72573 4xmen pm2panel - Authenticated OS Command Injection via id Query Parameter

An OS command injection vulnerability in 4xmen/pm2panel all versions allows an authenticated remote attacker to execute arbitrary system commands on the host. The pm2panel.js handler at line 188 passes the unsanitized req.query.id parameter directly to exec'pm2 restart ' + id without input...

CVE-2026-72566 automatisch - Server-Side Request Forgery via HTTP Request Custom Action

A server-side request forgery SSRF vulnerability in automatisch through commit 41f3c56 allows a low-privileged authenticated user with 'manage Flow' permission to make the server fetch arbitrary URLs and retrieve the full response body via the HTTP Request app's Custom Request action...