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 | Affected Vendo...

Open WebUI has stored XSS in Excel file preview

SummaryExcel 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. DetailsThe...

Open WebUI's Model Import Overwrites Any Model Without Ownership Check

Model Import Overwrites Any Model Without Ownership Check Affected ComponentModel import endpoint:- backend/openwebui/routers/models.py lines 254-308, importmodels Affected VersionsCurrent main branch commit 6fdd19bf1 and likely all versions with model import functionality. DescriptionThe POST...

Open WebUI has Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite

Knowledge Base Destruction and RAG Poisoning via Unauthorized Collection Overwrite Affected ComponentRetrieval web/YouTube processing endpoints:- backend/openwebui/routers/retrieval.py lines 1810-1837, processweb- backend/openwebui/routers/retrieval.py the parallel processyoutube endpoint-...

Open WebUI vulnerable to Global Knowledge Base Enumeration via knowledge-bases Meta-Collection

Global Knowledge Base Enumeration via knowledge-bases Meta-Collection Affected ComponentRetrieval collection access validation:- backend/openwebui/routers/retrieval.py lines 2330-2355, validatecollectionaccess- backend/openwebui/routers/retrieval.py query endpoints, e.g. POST /query/doc Affected...

Open WebUI Missing Access Check on Channel Members Endpoint for Standard Channels

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

Open WebUI: Deactivated Channel Members Retain Full Access to Group/DM Channels

Deactivated Channel Members Retain Full Access to Group/DM Channels Affected ComponentChannel membership authorization check:- backend/openwebui/models/channels.py lines 663-673, isuserchannelmember- Used at 15 locations in backend/openwebui/routers/channels.py Affected VersionsCurrent main branc...

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

Read-Only Users Can Modify Collaborative Documents via Socket.IO Affected ComponentSocket.IO collaborative document editing handler:- backend/openwebui/socket/main.py lines 667-721, ydoc:document:update handler Affected VersionsCurrent main branch and likely all versions with collaborative note...

OpenStack Cyborg uses rule:allow (check_str='@') as the default policy for multiple API endpoints

OpenStack Cyborg before 16.0.1 uses rule:allow checkstr='@' as the default policy for multiple API endpoints. This unconditionally authorizes any request carrying a valid Keystone token regardless of roles, project membership, or scope. An authenticated user with zero role assignments can complet...

OpenStack Cyborg's Accelerator Request (ARQ) API does not enforce project ownership at any layer

In OpenStack Cyborg before 16.0.1, the Accelerator Request ARQ API does not enforce project ownership at any layer. The projectid column in the database is never populated NULL for every ARQ, database queries have no project filtering, and policy checks are self-referential the authorizewsgi...

Bunsink has an SSRF bypass in `validate_webhook_url`

SummaryBugsink’s webhook URL validation in versions 2.1.2 and earlier could be partially bypassed because of a mismatch in URL parsing.In some malformed URLs, Python’s standard URL parser urllib and the HTTP client stack requests / urllib3 do not agree on which host is actually being targeted. Th...

Open WebUI: Redis Cache Keys tool_servers and terminal_servers Missing Instance Prefix Enable Cross-Instance Cache Poisoning

Redis Cache Keys toolservers and terminalservers Missing Instance Prefix Enable Cross-Instance Cache Poisoning Affected ComponentTool server and terminal server Redis cache:- backend/openwebui/utils/tools.py line 841, toolservers SET- backend/openwebui/utils/tools.py line 850, toolservers GET-...

Open WebUI: Stale Admin Role in Socket.IO Session Pool Enables Post-Demotion Cross-User Note Access

Stale Admin Role in Socket.IO Session Pool Enables Post-Demotion Cross-User Note Access Affected ComponentSocket.IO session state and role-check callsites:- backend/openwebui/socket/main.py lines 330-351, connect handler — role snapshotted into SESSIONPOOL- backend/openwebui/socket/main.py lines...

Open WebUI's responses passthrough endpoint lacks access control authorization

SummaryThe /responses endpoint in the OpenAI router accepts any authenticated user and forwards requests directly to upstream LLM providers without enforcing per-model access control. While the primary chat completion endpoint generatechatcompletion checks model ownership, group membership, and...

open-webui Vulnerable to Stored XSS via Model Description

!IMPORTANT Relationship to CVE-2024-7990 CVE-2024-7990 issued by huntr.dev, March 2025 describes a stored XSS in the same field — the model description — but exploits a different bypass mechanism: a second-order injection through the sanitizeResponseContent function's video-tag placeholder...

utcp-http vulnerable to SSRF via attacker-controlled OpenAPI servers[0].url in HTTP communication protocol

SummaryThe utcp-http plugin is vulnerable to a blind Server-Side Request Forgery SSRF caused by a trust-boundary inconsistency between manual discovery and tool invocation. registermanual validates the discovery URL against an HTTPS / loopback allowlist, but calltool and calltoolstreaming reuse t...

Open WebUI's Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts

Mass Assignment via Pydantic extra='allow' Allows Creating Folders in Other Users' Accounts Affected ComponentFolder creation endpoint and form model:- backend/openwebui/models/folders.py lines 72-77, FolderForm with extra='allow'- backend/openwebui/models/folders.py lines 95-106, insertnewfolder...

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...

Microsoft APM CLI's plugin.json component paths escape plugin root and copy arbitrary host files during install

SummaryMicrosoft APM normalizes marketplace plugins by copying plugin components referenced in plugin.json into .apm/. The manifest fields agents, skills, commands, and hooks are attacker-controlled, but the implementation does not enforce that those paths remain inside the plugin directory. A...

Kiota abstractions RedirectHandler leaks Cookie/Proxy-Authorization headers on cross-host redirect

SummaryThe RedirectHandler middleware in microsoft/kiota-java com.microsoft.kiota:microsoft-kiota-http-okHttp v1.9.0 and other Kiota libraries fails to strip sensitive HTTP headers when following 3xx redirects to a different host or scheme. This vulnerability is present in the RedirectHandlers...

Aegra has cross-user run injection in /threads/{thread_id}/runs (IDOR)

ImpactAegra deployments running 0.9.0 through 0.9.6 with multiple authenticated users on a shared instance are vulnerable to a cross-tenant IDOR. Any authenticated user User A, given another user's threadid User B, can:- Execute graph runs against User B's thread via POST /threads/threadid/runs,...

Postorius is vulnerable to XSS

Postorius through 1.3.13 does not escape HTML in the message subject when rendering it in the Held messages pop-up, as exploited in the wild in May 2026...

PraisonAI has an SSRF bypass

SummaryThe URL checking logic in PraisonAI has a logical flaw that could be bypassed by attackers, leading to SSRF attacks. DetailsThe current PraisonAI project uses validateurl to validate the input URL. The main logic is to perform security checks on the host portion of the URL extracted by...

docling-graph has SSRF via Missing Internal IP Validation in URLInputHandler

ImpactThe URLInputHandler class in doclinggraph/core/input/handlers.py makes HTTP requests to user-supplied URLs without validating whether the target resolves to a private, loopback, or link-local IP address. The URLValidator only checks for a valid scheme and non-empty netloc, performing no...

BentoML has Information Disclosure in `bentoml build` via symlink traversal in the build context

SummaryBentoML's bentoml build packaging workflow follows attacker-controlled symlinks inside the build context and copies the referenced file contents into the generated Bento artifact.If a victim builds an untrusted repository or other attacker-supplied build context, the attacker can place a...

PraisonAI has unauthenticated RCE via `tool_override.py` (CVE-2026-40287 patch bypass)

TL;DRCVE-2026-40287's fix gated tools.py auto-import behind PRAISONAIALLOWLOCALTOOLS=true in two files toolresolver.py, api/call.py. A third import sink in praisonai/templates/tooloverride.py was missed and remains unguarded. It is reached by the recipe runner on every recipe execution and is...

misp-modules has nsafe remote resource fetching in expansion

An unsafe remote resource fetching vulnerability existed in MISP Modules expansion modules. The htmltomarkdown module accepted arbitrary HTTPS URLs without sufficient validation, which could allow Server-Side Request Forgery against loopback, private, or link-local network resources. Additionally...

pyquorum: Timing side‑channel in mul_mod

ImpactThe mulmod function implements multiplication via a binary expansion loop whose execution time depends on the Hamming weight of the second operand the exponent. An attacker who can measure the time of secret‑sharing operations e.g., via a remote service could progressively recover the value...

JupyterLab's command linker attributes in HTML enable one-click command execution from untrusted content

JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with ...

JupyterLab's command linker attributes in HTML enable one-click command execution from untrusted content

JupyterLab's HTML sanitizer allowlists data-commandlinker-command and data-commandlinker-args on button elements, while CommandLinker listens for all click events on document.body and executes the named command without checking whether the element came from trusted JupyterLab UI. A notebook with ...

Magic Wormhole: receive, with --output pointing at an existing directory can be path-traversed

ImpactA receiver who specifies "--output " where that output directory currently exists as a directory. Patches0.24.0 will contain the patch WorkaroundsEnsure local target directories specified by "--output" do not already exist ResourcesPrivate email and Signal communications from a user.Magic...

Mako vulnerable to path traversal via backslash URI on Windows in TemplateLookup

SummaryOn Windows, a URI using backslash traversal e.g. \..\..\ secret.txt bypasses the directory traversal check in Template.init and the posixpath-based normalization in TemplateLookup.gettemplate, allowing reads of files outside the configured template directory. DetailsThe root cause is a...

Lemur: LDAP Authentication Globally Disables TLS Certificate Verification When LDAP_USE_TLS Is Enabled

Description OverviewWhen LDAP TLS is enabled LDAPUSETLS = True, Lemur's LDAP authentication module unconditionally disables TLS certificate verification at the global ldap module level. This allows a man-in-the-middle attacker positioned between Lemur and the LDAP server to intercept all...

Granian vulnerable to DoS via WSGI response header panic

SummaryGranian 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...

Granian vulnerable to unauthenticated DoS via WebSocket subprotocol header panic

SummaryGranian aborts a worker process when an unauthenticated client sends a WebSocket upgrade request whose Sec-WebSocket-Protocol header contains non-ASCII bytes.The crash happens in Granian's WebSocket scope construction path, before the ASGI application is invoked.This is a single-request...

python-multipart has Denial of Service via unbounded multipart part headers

Summarypython-multipart has a denial of service vulnerability in multipart part header parsing. When parsing multipart/form-data, MultipartParser previously had no limit on the number of part headers or the size of an individual part header. An attacker could send a request with either many...

Lemur: LDAP Filter Injection enables post-authentication privilege escalation

Description OverviewLemur's LDAP authentication module lemur/auth/ldap.py constructs LDAP search filters using unsanitized user input via Python string interpolation. An authenticated LDAP user can inject LDAP filter metacharacters through the username field to manipulate group membership queries...

vLLM Vulnerable to Remote DoS via Special-Token Placeholders

SummaryThis report explains a Token Injection vulnerability in vLLM’s multimodal processing. Unauthenticated, text-only prompts that spell special tokens are interpreted as control. Image and video placeholder sequences supplied without matching data cause vLLM to index into empty grids during...

ciguard: SCA HTTP client reads response body without size cap

SummaryBoth SCA HTTP clients src/ciguard/analyzer/sca/osv.py and src/ciguard/analyzer/sca/endoflife.py call payload = json.loadsresp.read.decode'utf-8' without a maximum-bytes cap. A hostile or compromised endoflife.date / OSV.dev or a successful TLS MITM could return a multi-GB response,...

OpenStack Ironic has an Incorrect Resource Transfer Between Spheres

An issue was discovered in idrac in OpenStack Ironic before 35.0.1. During import, a user invoking molds can request authorization to be sent to a remote endpoint. The credential forwarded is a time-limited Keystone token which provides access to all OpenStack services Ironic is authorized for; o...

PyLoad vulnerable to unauthenticated traceback disclosure via global exception handler in WebUI

Summarypyload-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 non-existen...

ciguard: Container image runs as root (no USER directive)

SummaryThe published ghcr.io/jo-jo98/ciguard container image inherits the default root user because the Dockerfile lacks a USER directive. ciguard is a static analyser with no need for root privileges; running as root inside a container makes any future container-runtime escape CVE more impactful...

Ethyca Fides has a Privacy Request Identity Verification Bypass Vulnerability via Duplicate Detection

SummaryFides deployments that enable both subject identity verification and duplicate privacy request detection are affected by a vulnerability in which an administrator can approve a privacy request whose identity was never verified. For erasure policies, this can result in unauthorized deletion...

Paramiko rsakey.py allows the SHA-1 algorithm

In Paramiko through 4.0.0 before a448945, rsakey.py allows the SHA-1 algorithm...

ciguard: discover_pipeline_files follows symlinks out of scan root

SummaryThe discoverpipelinefiles function in src/ciguard/discovery.py introduced in v0.8.0 and used by the MCP scanrepo tool shipped in v0.8.1 walks a directory tree following symlinks, with cycle protection via tracking visited resolved paths. An attacker who can plant a symlink in a directory t...

Mistune has a ReDoS in LINK_TITLE_RE that allows denial of service via crafted Markdown input

SummaryA ReDoS Regular Expression Denial of Service vulnerability in LINKTITLERE allows an attacker who can supply Markdown for parsing to cause denial of service. A crafted 58-byte Markdown document blocks the parser for approximately 6 seconds measured on Apple M2, Python 3.14.3, with exponenti...

PPTAgent: Arbitrary Code Execution via Python eval() of LLM-Generated Code with Builtins in Scope

Summary This vulnerability has been fixed in https://github.com/icip-cas/PPTAgent/commit/418491a9a1c02d9d93194b5973bb58df35cf9d00.CodeExecutor.executeactions pptagent/apis.py:126-205 processes LLM-generated slide editing actions using Python's eval: python pptagent/apis.py:184-186partialfunc =...

Microdot has HTTP response splitting in Response.set_cookie()

ImpactThe Response.setcookie method does not sanitize its string arguments, and in particular will not detect the presence of the \r\n sequence in them. This can be a potential source of header injection attacks.For a header injection attack through this issue to be possible, an attacker must fir...

OpenStack Horizon has Incorrect Behavior Order

An issue was discovered in OpenStack Horizon 25.6 and 25.7 before 25.7.3. There is a write operation to the session storage backend before authentication and thus storage can be exhausted by unauthenticated requests. This is a regression of the CVE-2014-8124 fix...

requests-hardened is Vulnerable to Server-Side Request Forgery

The SSRF protection in requests-hardened prior to version 1.2.1 fails to block IP addresses within the RFC 6598 Shared Address Space 100.64.0.0/10. An attacker who can supply arbitrary URLs to requests-hardened could exploit this gap to access internal services hosted within 100.64.0.0/10. This i...