Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the embeds property of response messages, which is loaded into an iFrame with an insufficiently restrictive sandbox. An attacker can execute arbitrary JavaScript in the context of...

Cross-site Scripting (XSS)

Overview open-webui is an Open WebUI Affected versions of this package are vulnerable to Cross-site Scripting XSS in the rendering of chat messages containing certain HTML tags using the @html functionality in Svelte. An attacker can execute arbitrary JavaScript in the context of a user's browser...

EUVD-2025-13498

Open WebUI vulnerable to stored XSS via unescaped markdown token in MarkdownTokens.svelte leading to full account takeover and RCE via functions...

Open WebUI vulnerable to stored XSS via unescaped markdown token in MarkdownTokens.svelte leading to full account takeover and RCE via functions

Summary A vulnerability in the way certain html tags in chat messages are rendered allows attackers to inject JavaScript code into a chat transcript. The JavaScript code will be executed in the user's browser every time that chat transcript is opened, allowing attackers to retrieve the user's...

GHSA-8GH5-QQH8-HQ3X Open WebUI allows limited stored XSS vila uploaded html file

Summary Low privileged users can upload HTML files which contain JavaScript code via the /api/v1/files/ backend endpoint. This endpoint returns a file id, which can be used to open the file in the browser and trigger the JavaScript code in the user's browser. Under the default settings, files...

GO-2026-5924 Coder's session token leaked to arbitrary hosts via `coder open app` for external workspace apps in github.com/coder/coder

Coder's session token leaked to arbitrary hosts via coder open app for external workspace apps in github.com/coder/coder...

PYSEC-2026-1965 Hugging Face Text Generation Inference vulnerable to Uncontrolled Resource Consumption

A vulnerability in huggingface/text-generation-inference version 3.3.6 allows unauthenticated remote attackers to exploit unbounded external image fetching during input validation in VLM mode. The issue arises when the router scans inputs for Markdown image links and performs a blocking HTTP GET...

PYSEC-2026-1502 Label Studio is vulnerable to full account takeover by chaining Stored XSS + IDOR in User Profile via custom_hotkeys field

Prologue These vulnerabilities have been found and chained by DCODX-AI. Validation of the exploit chain has been confirmed manually. Summary A persistent stored cross-site scripting XSS vulnerability exists in the customhotkeys functionality of the application. An authenticated attacker or one wh...

PYSEC-2026-1363 FastAPI Users Vulnerable to 1-click Account Takeover in Apps Using FastAPI SSO

Description The OAuth login state tokens are completely stateless and carry no per-request entropy or any data that could link them to the session that initiated the OAuth flow. generatestatetoken is always called with an empty statedata dict, so the resulting JWT only contains the fixed audience...

PYSEC-2026-1729 Open WebUI Affected by an External Model Server (Direct Connections) Code Injection via SSE Events

Summary Open WebUI v0.6.33 and below contains a code injection vulnerability in the Direct Connections feature that allows malicious external model servers to execute arbitrary JavaScript in victim browsers via Server-Sent Event SSE execute events. This leads to authentication token theft, comple...

PYSEC-2026-1203 Authlib is vulnerable to Denial of Service via Oversized JOSE Segments

Summary Authlib’s JOSE implementation accepts unbounded JWS/JWT header and signature segments. A remote attacker can craft a token whose base64url‑encoded header or signature spans hundreds of megabytes. During verification, Authlib decodes and parses the full input before it is rejected, driving...

PYSEC-2026-1348 Fides' Admin UI User Password Change Does Not Invalidate Current Session

Summary Admin UI user password changes in Fides do not invalidate active user sessions, creating a vulnerability chaining opportunity where attackers who have obtained session tokens through other attack vectors such as XSS can maintain access even after password reset. This issue is not directly...

PYSEC-2026-1977 Transformers is vulnerable to ReDoS attack through its DonutProcessor class

A Regular Expression Denial of Service ReDoS vulnerability was discovered in the Hugging Face Transformers library, specifically within the DonutProcessor class's token2json method. This vulnerability affects versions 4.51.3 and earlier, and is fixed in version 4.52.1. The issue arises from the...

GO-2026-5881 goshs: Share-link ?token=… redemption races past download limit in goshs.de/goshs

goshs: Share-link ?token=… redemption races past download limit in goshs.de/goshs...

GO-2026-5889 Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled in github.com/projectcontour/contour

Contour has Improper JWT Verification for Non-SNI Requests on Virtual Hosts with Fallback Certificate Enabled in github.com/projectcontour/contour...

GO-2026-5892 Casdoor doesn't verify that a JWT used for token exchange is still active in github.com/casdoor/casdoor

Casdoor doesn't verify that a JWT used for token exchange is still active in github.com/casdoor/casdoor...

GO-2026-5850 Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container in github.com/fission/fission

Fission builder pods auto-mount the fission-builder ServiceAccount token in the user-supplied builder container in github.com/fission/fission...

GO-2026-5811 turso-cli persists Turso platform JWT with world-readable (0o644) file permissions in github.com/tursodatabase/turso-cli

turso-cli persists Turso platform JWT with world-readable 0o644 file permissions in github.com/tursodatabase/turso-cli...

GO-2026-5828 Nezha Monitoring: Pre-auth path traversal via /dashboard.. prefix confusion leaks jwt_secret_key in github.com/nezhahq/nezha

Nezha Monitoring: Pre-auth path traversal via /dashboard.. prefix confusion leaks jwtsecretkey in github.com/nezhahq/nezha. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. If this is causing false-positi...

PYSEC-2026-1936 Spotipy's cache file, containing spotify auth token, is created with overly broad permissions

Summary The CacheHandler class creates a cache file to store the auth token here: https://github.com/spotipy-dev/spotipy/blob/master/spotipy/cachehandler.pyL93-L98 The file created has rw-r--r-- 644 permissions by default, when it could be locked down to rw------- 600 permissions. I think 600 is ...