Open WebUI: Scheduled automations continue after pending-user deactivation and stored model ACL revocation

Title: Scheduled automations continue after pending-user deactivation and stored model ACL revocation SummaryOpen WebUI documents pending as a zero-access role used for new sign-ups and deactivated users, and normal HTTP routes enforce that with getverifieduser which rejects pending, while...

Open WebUI: POST /api/v1/images/edit bypasses the global image-edit switch and the per-user image-generation permission

SummaryPOST /api/v1/images/edit performed no authorization beyond requiring a verified account. Every other image-editing surface in Open WebUI enforces the global image-edit switch and the per-user image-generation permission — the /api/v1/images/generations route, the built-in editimage tool, a...

Open WebUI: Cross-channel message overwrite via chat completion API (single-model and multimodel message_ids)

SummaryAny authenticated user can overwrite the content of a message in a channel they do not belong to including private and DM channels by sending a chat completion request with a channel:-prefixed chatid and a target messageid. The channel: path routes pipeline output through makechannelemitte...

Open WebUI: Unauthenticated WebSocket Access to Collaborative Document Handlers (ydoc:awareness:update, ydoc:document:leave)

SummaryThe Socket.IO server is configured with alwaysconnect=True lines 78, 91 in backend/openwebui/socket/main.py and the connect handler line 329 never rejects unauthenticated connections. Two Ydoc event handlers have zero authentication checks, allowing unauthenticated clients to interact with...

Open WebUI: Realtime endpoints accept Redis-revoked JWTs after signout/backchannel logout

SummaryWith Redis configured, Open WebUI supports JWT revocation: POST /api/v1/auths/signout per-token jti and OIDC back-channel logout per-user revokedat record revocations in Redis, and HTTP auth getcurrentuser rejects revoked tokens with 401. The realtime authentication surfaces do not perform...

Open WebUI: ReDoS in skill-mention regexes causes whole-instance DoS on default config

SummaryTwo regexes in backend/openwebui/utils/middleware.py that parse skill-mention tags backtrack in On² on input that contains . Both run synchronously, on the asyncio event loop, on every chat completion with no feature gate. Because the default deployment is a single uvicorn worker, one such...

Open WebUI: Cross-user code-interpreter and tool execution via unvalidated Socket.IO event-caller session_id

SummaryAn authenticated low-privilege user can execute arbitrary code-interpreter Python and tools inside another user's authenticated session. The Socket.IO event-caller geteventcall delivers execute:python / execute:tool events to a client-supplied sessionid after only checking that the session...

pypdf: Possible long runtimes for repeated malformed cross-reference entries

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with repeated malformed cross-reference streams. PatchesThis has been fixed in pypdf==6.14.0. WorkaroundsIf you cannot upgrade yet, consider applying the changes from ...

pypdf: Possible infinite loop for not terminated inline images

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. PatchesThis has been fixed in pypdf==6.14.1. WorkaroundsIf you...

pypdf: Possible infinite loop for not terminated inline images (ASCII85 and ASCIIHex filter)

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This requires parsing the content stream of a page with a not terminated inline image, as done when extracting the page text for example. It only affects the ASCII85 and ASCIIHex filters. PatchesThis ha...

MySQL MCP Server is Vulnerable to SQL Injection Through its mysql URI Handler

A vulnerability was determined in designcomputer mysql-mcp-server up to 0.2.2. The impacted element is the function readresource of the file src/mysqlmcpserver/server.py of the component mysql URI Handler. This manipulation of the argument uristr causes sql injection. Remote exploitation of the...

pypdf: Possible large memory usage for wrong image dimensions

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to large memory usage. This requires loading images where the declared size values are much too large compared to the actual data. PatchesThis has been fixed in pypdf==6.14.0. WorkaroundsIf you cannot upgrade yet, consider...

zilliztech deep-searcher has an Incorrect Privilege Assignment issue

A weakness has been identified in zilliztech deep-searcher up to 0.0.2. This affects the function CollectionRouter.invoke of the file deepsearcher/agent/collectionrouter.py. This manipulation of the argument kwargs causes improper access controls. Remote exploitation of the attack is possible. Th...

Nanobot contains a server-side request forgery vulnerability in the web_fetch tool

Nanobot prior to version 0.2.1 contains a server-side request forgery vulnerability in the webfetch tool that allows remote attackers to reach internal or private network hosts by supplying a URL that redirects to a loopback or private address via a 3xx Location header. Attackers can exploit the...

ONNX: Heap-Buffer-Overflow READ in Gemm Version Converter Adapter via Undersized Input Shape

SummaryHeap-buffer-overflow READ 16 bytes in Gemm76::adaptgemm76 onnx/versionconverter/adapters/gemm76.h:41 when ConvertVersion processes a model with a Gemm node whose input tensors have fewer than 2 dimensions. The adapter accesses Bshape1 without checking rank. On Release builds the OOB read i...

awxkit has a path traversal vulnerability

A path traversal vulnerability was found in awxkit, the CLI tool for AWX. The YAML !include directive does not sanitize file paths, allowing an attacker to craft a malicious YAML file that reads arbitrary YAML-formatted files from the local filesystem when a user imports it using "awx --conf.form...

hermes-agent has an Injection issue

A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. This affects the function scanmemorycontent of the file tools/memorytool.py. This manipulation causes injection. The attack can be initiated remotely. The exploit has been made available to the public and could be used f...

hermes-agent has an Injection issue

A vulnerability was identified in NousResearch hermes-agent up to 0.12.0. Affected by this vulnerability is the function compresscontext of the file runagent.py. The manipulation leads to injection. It is possible to initiate the attack remotely. The exploit is publicly available and might be use...

hermes-agent has an Uncontrolled Resource Consumption issue

A security vulnerability has been detected in NousResearch hermes-agent up to 2026.4.30. This vulnerability affects the function handlewebhookrequest of the file gateway/platforms/feishu.py of the component Webhook Endpoint. Such manipulation leads to resource consumption. The attack can be...

PYSEC-2026-3721

pip would incorrectly handle doubly-encoded package URLs from indexes allowing for files to be installed to arbitrary locations on disk even when installing wheels.This vulnerability requires downloading or installing a package from a malicious package index to succeed, malicious packages alone a...

PYSEC-2026-3657

NLTK Natural Language Toolkit before version 3.9.3 contains an eval injection vulnerability in the nltk.collocations module that allows an attacker who controls command-line arguments to execute arbitrary Python code. When collocations.py is invoked directly, the main block passes command-line...

PYSEC-2026-3716

Datasets through 5.0.0, fixed in commit f989ef9, contains a path traversal vulnerability in folder-based dataset builders where the filename metadata field is not properly validated before being joined to the dataset directory. Attackers can supply crafted filename values with directory traversal...

Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints

SummaryOpen WebUI allows admins to restrict which API endpoints an API key can access. When an API key is restricted from /api/v1/messages, requests using the Authorization: Bearer sk-... header are correctly blocked with 403. However, the same key sent via the x-api-key header bypasses the...

LiteLLM: Custom Code Guardrails production endpoints bypass code safety checks

ImpactLiteLLM's Custom Code Guardrails production create/update paths did not apply the same sandboxing and validation used by the test endpoint.A privileged user with access to create or update guardrails could submit custom Python code that executed in the LiteLLM proxy environment. In...

Pillow JPEG2000 tiled decode retains a growing scratch buffer and can be used for denial of service

Summarysrc/libImaging/Jpeg2KDecode.c:853 accumulates totalcomponentwidth across every tile in a JPEG2000 image instead of recomputing it per tile. That accumulated value is then used in the tilebytes calculation at src/libImaging/Jpeg2KDecode.c:868, which can make the decoder grow state-buffer vi...

LiteLLM: MCP Authentication Bypass via OAuth2 Passthrough Fallback

ImpactLiteLLM's MCP Streamable HTTP endpoint could allow an unauthenticated attacker to establish an authenticated MCP session using an arbitrary Bearer token.The MCP auth handler supported OAuth2 passthrough for upstream MCP servers, but the fallback path could replace failed LiteLLM key...

LiteLLM: Arbitrary file write via path traversal in Skills archive extraction

ImpactLiteLLM Skills archive extraction did not sufficiently validate file paths from uploaded skill ZIP archives. An authenticated user with access to LiteLLM LLM API routes, or a key whose allowedroutes includes /v1/skills, anthropicroutes, or llmapiroutes, could upload a crafted skill archive...

LiteLLM: Local file read via request-supplied OIDC file references

ImpactLiteLLM's /health/testconnection endpoint resolved request-supplied environment and OIDC file references in litellmparams. A proxy administrator, or another privileged caller with permission to test model connections, could cause LiteLLM to read files from the local filesystem via an...

Pillow: Decompression Bomb DoS via PdfParser.PdfStream.decode()

SummaryPdfParser.PdfStream.decode in Pillow's PdfParser.py calls zlib.decompress with the bufsize parameter set to the value of the PDF stream's Length field, without any upper bound on the actual decompressed output size. Python's zlib.decompress bufsize argument is an initial output buffer hint...

LightRAG: CORS Wildcard + Credentials Enables Any-Origin Credentialed Requests

SummaryThe server defaults to CORSORIGINS= combined with allowcredentials=True. Starlette's CORSMiddleware echoes the requesting origin in preflight responses when credentials are enabled, meaning every origin is effectively whitelisted for credentialed cross-origin requests. Any malicious websit...

PocketSphinx: Buffer overflows in language and acoustic model loading code

ImpactThe trie language model code introduced in PocketSphinx 5prealpha failed to check various boundary conditions when reading the headers of ARPA, DMP, and binary format language model files. In the case of invalid, corrupted or malicious input files, this could lead to stack and heap buffer...

Pillow TGA RLE encoder can serialize up to ~57 KB of adjacent heap data into generated images

SummaryPillow's TGA RLE encoder reads past its row buffer when saving a mode "1"image. Adjacent process heap bytes can be copied into the generated TGA file.The bug is reachable through the public save API:pythonim.saveout, format="TGA", compression="tgarle"Older affected Pillow versions use the...

Pillow: Out-of-bounds read via attacker-controlled row stride on Pillow's mmap path (McIdas AREA files)

SummaryWhen Pillow loads an uncompressed image whose tile uses the raw codec and a mode in Image.MAPMODES, and the image was opened from a filename, it memory-maps the file and builds the image's row pointers directly into the mapping via PyImagingMapBuffer src/map.c. The per-row spacing stride i...

LightRAG is Vulnerable to Authentication Bypass: hardcoded DEFAULT_TOKEN_SECRET and public /auth-status defeat LIGHTRAG_API_KEY protection

SummaryWhen LightRAG is deployed with LIGHTRAGAPIKEY set but AUTHACCOUNTS unset an officially documented "API-Key authentication" mode, the X-API-Key protection can be bypassed by any remote unauthenticated attacker. The bypass does not require network contact with the victim server — an attacker...

Prompty: Arbitrary file read via file reference expansion

SummaryPrompty loaders expanded $file:... references in .prompty frontmatter without enforcing that the resolved path stayed within an authorized directory. An attacker-controlled prompt file could use path traversal or an absolute path to cause the host application to read files accessible to th...

meta-ads-mcp: X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token

X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token SummaryAuthInjectionMiddleware in meta-ads-mcp rejects HTTP MCP requests only when both authtoken and pipeboardtoken are absent. Because extracttokenfromheaders does not recognise the X-Pipeboard-Token header, an attacker who sends...

Flask-Reuploaded: Extension-denylist bypass via case-folding asymmetry in name-override path (incomplete-fix variant of CVE-2026-27641)

Header| Field | Value ||---|---|| Title | Extension-denylist bypass via case-folding asymmetry in name-override path incomplete-fix variant of CVE-2026-27641 || Project | Flask-Reuploaded flaskuploads || Affected | extension"shell.php" = "php" - extensionallowed"php" - DENY correctname-override...

meta-ads-mcp: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch

Server-Side Request Forgery SSRF in uploadadimage via Unrestricted imageurl Fetch SummaryThe uploadadimage MCP tool in meta-ads-mcp v1.0.113 passes an attacker-controlled imageurl parameter directly to an HTTP fetch helper httpx.AsyncClientfollowredirects=True.geturl without any scheme, host, or ...

vLLM has Remote DoS via Invalid Recovered Token Reinjection

SummaryA frontend-legal multi-request speculative workload can make vLLM produce an out-of-vocabulary recovered token equal to vocabsize, convert that value to -1 when choosing the next live token for a request, and then feed that -1 back into the next drafter input ids. On Qwen3 GPTQ this reache...

MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks

SummaryIn affected versions, the default request handlers installed by the experimental tasks feature server.experimental.enabletasks did not check which session created a task before acting on it. On a server with more than one connected client, any client could observe, read results from, and...

plone.app.textfield: Stored XSS by spoofing mime type

ImpactA stored XSS affecting RichText fields. RichTextValue.output returns the raw, unsanitized stored value whenever the stored mimeType equals the outputMimeType. Because the safe-HTML output type text/x-html-safe is the type that signifies "already sanitized", any value whose stored mimeType...

dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS

ImpactDatadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DDTRACEBAGGAGEMAXITEMS default 64 and DDTRACEBAGGAGEMAXBYTES default 8192 limits were applied only to baggage...

sh _uid does not drop supplementary groups (incomplete privilege drop)

ImpactThe uid option performed an incomplete privilege drop on Linux/Unix-like systems.When sh was run from a process with elevated privileges, such as root, and a command was launched with uid=, the child process changed its UID and primary GID but did not reset its supplementary groups. As a...

MCP Python SDK: HTTP transports serve session requests without verifying the authenticated principal

SummaryIn affected versions, the SSE and Streamable HTTP server transports routed incoming requests to an existing session based only on the session identifier, without verifying that the request was authenticated as the same principal that created the session. Anyone who learned or guessed a...

MCP Python SDK: WebSocket server transport does not support Host/Origin validation

SummaryIn affected versions, the deprecated WebSocket server transport mcp.server.websocket.websocketserver accepted the WebSocket handshake without applying any Host or Origin header validation. The TransportSecuritySettings mechanism that the SSE and Streamable HTTP transports use for this...

Pixeldrain API key shared with unverified thirdparty sites

SummaryWhen processing Pixeldrain URLs, cyberdrop-dl-patched could send an Authorization header that includes the user's API key to unverified hosts. DetailsPixeldrain offers several alternative domains in case the user's ISP blocks the primary domain. To support this, requests made by...

DIRAC: Pilot code downloaded over unverified HTTPS connection

SummaryThe second stage pilot pilot.tar is downloaded by the initial wrapper script without any verification of the webservers' SSL certificate and the contained script is subsequently executed. The checksum is tested, but the reference checksum file is downloaded over the same unvalidated channe...

garminconnect Has Insecure Permission Assignment for Garmin OAuth Token Store

Insecure Permission Assignment for Garmin OAuth Token Store Summarygarminconnect ≤ 0.3.4 wrote its OAuth token store to disk without restricting file-system permissions. Under the default Linux umask 022 the token file garmintokens.json was created world-readable 0o644. The file contains the DI...

NetLicensing-MCP: Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode

Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode SummaryWhen netlicensing-mcp is run in HTTP transport mode, the ApiKeyMiddleware fails to enforce authentication: requests that carry no client API key are unconditionally forwarded to the next handler server.py:1427. The...

FiftyOne App server uses wildcard CORS (Access-Control-Allow-Origin: *), enabling cross-origin reads of local server data

ImpactThe FiftyOne App/API server fiftyone/server/app.py and the /media route fiftyone/server/routes/media.py unconditionally set a permissive CORS header Access-Control-Allow-Origin: on their responses. Because the embedded App server runs locally and is unauthenticated, this allows any website ...