PYSEC-2026-2726 Open WebUI has Broken Access Control for Completions API

Summary Any user X can continue the conversation of any other user Y, as long as the Chat ID of Y is known. User X does not even need to be an admin to do so. Details A user just needs to use the API endpoint: /api/chat/completions with their own API key generated in OWUI and the Chat ID of anoth...

PYSEC-2026-3420 wger: Privilege escalation via trainer-login session chaining allows gym trainer to impersonate gym manager

Summary A gym trainer can escalate their session to any higher-privileged account gym manager, general manager by chaining two calls to the trainer-login endpoint. Once a trainer performs a legitimate switch into a low-privileged user, the session flag trainer.identity is set and this flag alone...

PYSEC-2026-2737 Open WebUI Arbitrary File Write, Delete via Path Traversal

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation ----------------------------------------------- Vulnerability Details --------------------- 1. Discoverer: Taylor Pennington of KoreLogic, Inc. 2. Date Submitted: June 11, 2024 3. Title: Open WebUI Arbitrary File Write, Delete via Path...

PYSEC-2026-2703 Open WebUI has Improper Authorization Control

CONFIDENTIAL Vulnerability Disclosure Analysis Documentation --- Vulnerability Details | | Field | Value | |---|-------|-------| | 1 | Discoverer | Taylor Pennington of KoreLogic, Inc. | | 2 | Date Submitted | June 11, 2024 | | 3 | Title | Open WebUI Improper Authorization Control | | 5 | Affecte...

PYSEC-2026-2744 Open WebUI has stored XSS in Excel file preview

Summary Excel file attachments are previewed in an unsafe way. A crafted XLSX file payload can be used to cause the sheetjs function sheettohtml to embed an XSS payload into the generated HTML. This is subsequently added to the DOM unsanitized via @html causing the payload to trigger. Details The...

PYSEC-2026-2749 Open WebUI's Model Import Overwrites Any Model Without Ownership Check

Model Import Overwrites Any Model Without Ownership Check Affected Component Model import endpoint: - backend/openwebui/routers/models.py lines 254-308, importmodels Affected Versions Current main branch commit 6fdd19bf1 and likely all versions with model import functionality. Description The POS...

PYSEC-2026-2720 Open WebUI Missing Access Check on Channel Members Endpoint for Standard Channels

Missing Access Check on Channel Members Endpoint for Standard Channels Affected Component Channel members listing endpoint: - backend/openwebui/routers/channels.py lines 445-507, getchannelmembersbyid Affected Versions Current main branch and likely all versions with the channels feature...

PYSEC-2026-2711 Open WebUI's Channel Access Grants Bypass filter_allowed_access_grants

Channel Access Grants Bypass filterallowedaccessgrants Affected Component Channel creation and update endpoints: - backend/openwebui/routers/channels.py lines 291-340, createnewchannel - backend/openwebui/routers/channels.py lines 617-638, updatechannelbyid - backend/openwebui/models/channels.py...

PYSEC-2026-2762 Read-Only Open WebUI Users Can Modify Collaborative Documents via Socket.IO

Read-Only Users Can Modify Collaborative Documents via Socket.IO Affected Component Socket.IO collaborative document editing handler: - backend/openwebui/socket/main.py lines 667-721, ydoc:document:update handler Affected Versions Current main branch and likely all versions with collaborative not...

Open WebUI's Base Model Routing Bypasses Access Control via Model Chaining

Base Model Routing Bypasses Access Control via Model Chaining Affected ComponentModel chaining via basemodelid:- backend/openwebui/routers/models.py lines 170-214, createnewmodel- backend/openwebui/routers/models.py lines 254-308, importmodels- backend/openwebui/main.py lines 1696-1711, base mode...

PYSEC-2026-2502 Granian vulnerable to DoS via WSGI response header panic

Summary Granian aborts a worker process if a WSGI application returns an invalid HTTP response header name or value. The WSGI response conversion path uses .unwrap on both the header name and header value constructors, so malformed output from the application becomes a process abort instead of a...

PYSEC-2026-2993 PyLoad vulnerable to unauthenticated traceback disclosure via global exception handler in WebUI

Summary pyload-ng WebUI returns full Python traceback details to clients on unhandled exceptions. Because /web/ is reachable without authentication and renders attacker-controlled template names, an unauthenticated user can reliably trigger a server exception for example by requesting a...

kioptrix-level1-writeup

Kioptrix Level 1 — Penetration Test Write-up A full walkthrou...

PYSEC-2026-2397 beets has a Cross-site Scripting vulnerability

During code logic analyis, an area that may lead to unintended behavior under specific conditions was discovered. Overview - Verified Version: 80cd21554124da07d17a4f962c7d770a4f70d0f2 - Vulnerability Type: Stored XSS - Affected Location: beetsplug/web/templates/index.html:42 - Trigger Scenario:...

PYSEC-2026-2330 AgentScope vulnerable to Server-Side Request Forgery

A security flaw has been discovered in modelscope agentscope up to 1.0.18. This affects the function getbytesfromweburl of the file src/agentscope/utils/common.py of the component Internal Service. Performing a manipulation results in server-side request forgery. It is possible to initiate the...

PYSEC-2026-2352 Apache Airflow: JWT token appearing in logs

JWT Tokens used by tasks were exposed in logs. This could allow UI users to act as Dag Authors. Users are advised to upgrade to Airflow version that contains fix. Users are recommended to upgrade to version 3.2.0, which fixes this issue...

PYSEC-2026-2951 PraisonAIAgents: SSRF via unvalidated URL in `web_crawl` httpx fallback

| Field | Value | |---|---| | Severity | High | | Type | SSRF -- unvalidated URL in webcrawl httpx fallback allows internal network access | | Affected | src/praisonai-agents/praisonaiagents/tools/webcrawltools.py:133-180 | Summary webcrawl's httpx fallback path passes user-supplied URLs directly...

PYSEC-2026-2906 PraisonAI Vulnerable to Server-Side Request Forgery via Unvalidated webhook_url in Jobs API

Summary The /api/v1/runs endpoint accepts an arbitrary webhookurl in the request body with no URL validation. When a submitted job completes success or failure, the server makes an HTTP POST request to this URL using httpx.AsyncClient. An unauthenticated attacker can use this to make the server...

PYSEC-2026-2945 PraisonAIAgents has SSRF and Local File Read via Unvalidated URLs in web_crawl Tool

Summary The webcrawl function in praisonaiagents/tools/webcrawltools.py accepts arbitrary URLs from AI agents with zero validation. No scheme allowlisting, hostname/IP blocklisting, or private network checks are applied before fetching. This allows an attacker or prompt injection in crawled conte...

PYSEC-2026-2592 lightrag-hku: JWT Algorithm Confusion Vulnerability

Summary The LightRAG API is vulnerable to a JWT algorithm confusion attack where an attacker can forge tokens by specifying 'alg': 'none' in the JWT header. Since the jwt.decode call does not explicitly deny the 'none' algorithm, a crafted token without a signature will be accepted as valid,...