PYSEC-2026-3280 Undefined behavior when users supply invalid resource handles

Impact Multiple TensorFlow operations misbehave in eager mode when the resource handle provided to them is invalid: python import tensorflow as tf tf.rawops.QueueIsClosedV2handle= python import tensorflow as tf tf.summary.flushwriter= In graph mode, it would have been impossible to perform these...

PYSEC-2026-3350 Missing validation causes denial of service via `SparseTensorToCSRSparseMatrix`

Impact The implementation of tf.rawops.SparseTensorToCSRSparseMatrix does not fully validate the input arguments. This results in a CHECK-failure which can be used to trigger a denial of service attack: python import tensorflow as tf indices = tf.constant53, shape=3, dtype=tf.int64 values =...

PYSEC-2026-2964 Plone unauthorized member addition vulnerability

Plone 3.3.0 through 3.3.6, 4.0.0 through 4.0.10, 4.1.0 through 4.1.6, 4.2.0 through 4.2.7, 4.3.0 through 4.3.6, and 5.0rc1 allows remote attackers to add a new member to a Plone site with registration enabled, without acknowledgment of site administrator...

PYSEC-2026-2412 OpenStack Cinder, Glance, and Nova contain Uncontrolled Resource Consumption

The image parser in OpenStack Cinder prior to 7.0.2, and 8.0.0 and above, prior to 9.0.0; Glance prior to 14.00; and Nova prior to 12.0.4 does not properly limit qemu-img calls, which might allow attackers to cause a denial of service memory and disk consumption via a crafted disk image. This iss...

PYSEC-2026-3390 Tryton vulnerable to arbitrary command execution

The safeeval function in trytond in Tryton before 2.4.15, 2.6.x before 2.6.14, 2.8.x before 2.8.11, 3.0.x before 3.0.7, and 3.2.x before 3.2.3 allows remote authenticated users to execute arbitrary commands via shell metacharacters in 1 the collection.domain in the webdav module or 2 the formula...

PYSEC-2026-3191 `CHECK`-failures in binary ops in Tensorflow

Impact A malicious user can cause a denial of service by altering a SavedModel such that any binary op would trigger CHECK failures. This occurs when the protobuf part corresponding to the tensor arguments is modified such that the dtype no longer matches the dtype expected by the op. In that cas...

PYSEC-2026-3158 Memory exhaustion in Tensorflow

Impact The implementation of ThreadPoolHandle can be used to trigger a denial of service attack by allocating too much memory: python import tensorflow as tf y = tf.rawops.ThreadPoolHandlenumthreads=0x60000000,displayname='tf' This is because the numthreads argument is only checked to not be...

PYSEC-2026-3225 Crash due to erroneous `StatusOr` in TensorFlow

Impact A GraphDef from a TensorFlow SavedModel can be maliciously altered to cause a TensorFlow process to crash due to encountering a StatusOr value that is an error and forcibly extracting the value from it: cc if opregdata-typector != nullptr VLOG3 opdef; const FullTypeDef ctortypedef =...

PYSEC-2026-3249 Out of bounds read in Tensorflow

Impact TensorFlow's type inference can cause a heap OOB read as the bounds checking is done in a DCHECK which is a no-op during production: cc if nodet.typeid != TFTUNSET int ix = inputidxi; DCHECKix nodet.argssize "input " i " should have an output " ix " but instead only has " nodet.argssize "...

PYSEC-2026-3137 Integer overflow in TensorFlow

Impact Under certain scenarios, Grappler component of TensorFlow is vulnerable to an integer overflow during cost estimation for crop and resize. Since the cropping parameters are user controlled, a malicious person can trigger undefined behavior. Patches We have patched the issue in GitHub commi...

PYSEC-2026-2822 Divide By Zero in OpenCV.

An issue was discovered in OpenCV 4.1.0 OpenCV-Python 4.1.0.25. There is a divide-by-zero error in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp...

PYSEC-2026-2810 Out-of-bounds Read in OpenCV

In OpenCV 3.3.1 corresponding with OpenCV-Python 3.3.1.11, a heap-based buffer over-read exists in the function cv::HdrDecoder::checkSignature in modules/imgcodecs/src/grfmthdr.cpp...

PYSEC-2026-2832 Integer Overflow or Wraparound in OpenCV

In opencv/modules/imgcodecs/src/grfmtpxm.cpp, function PxMDecoder::readData has an integer overflow when calculate srcpitch. If the image is from remote, may lead to remote code execution or denial of service. This affects OpenCV 3.3 corresponding to OpenCV-Python 3.3.0.9 and earlier...

PYSEC-2026-2813 Out-of-bounds Write in OpenCV

OpenCV Open Source Computer Vision Library through 3.3 corresponding to opencv-python and opencv-contrib-python through 3.3.0.9 has an out-of-bounds write error in the function FillColorRow1 in utils.cpp when reading an image file by using cv::imread...

PYSEC-2026-2887 SSRF attacks via tracebacks in Plone

Plone before 5.2.3 allows SSRF attacks via the tracebacks feature only available to the Manager role...

PYSEC-2026-2216

Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.3.0, a Markdown document containing many repeated or distinct reference-link definitions causes quadratic work in src/mistune/blockparser.py and the reflinks environment dictionary handling, allowing denial of service...

PYSEC-2026-1796 pip Path Traversal vulnerability

When pip is installing and extracting a maliciously crafted wheel archive, files may be extracted outside the installation directory. The path traversal is limited to prefixes of the installation directory, thus isn't able to inject or overwrite executable files in typical situations...

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-2026-1639 mlflow Creates of Temporary File in Directory with Insecure Permissions

In mlflow version 2.20.3, the temporary directory used for creating Python virtual environments is assigned insecure world-writable permissions 0o777. This vulnerability allows an attacker with write access to the /tmp directory to exploit a race condition and overwrite .py files in the virtual...

PYSEC-2026-2052 Weblate wlc has insecure API key configuration

Impact Historically, wlc supported providing unscoped API keys in the setting. This practice was discouraged for years, but the code was never removed. This might cause the API key to be used against different server. Patches https://github.com/WeblateOrg/wlc/pull/1098 Workarounds Remove unscoped...

PYSEC-2026-1373 Fickling has a bypass via runpy.run_path() and runpy.run_module()

Fickling's assessment runpy was added to the list of unsafe imports https://github.com/trailofbits/fickling/commit/9a2b3f89bd0598b528d62c10a64c1986fcb09f66. Original report Summary Fickling versions up to and including 0.1.6 do not treat Python’s runpy module as unsafe. Because of this, a malicio...

PYSEC-2026-1101 AIOHTTP's HTTP Parser auto_decompress feature is vulnerable to zip bomb

Summary A zip bomb can be used to execute a DoS against the aiohttp server. Impact An attacker may be able to send a compressed request that when decompressed by aiohttp could exhaust the host's memory. ------ Patch: https://github.com/aio-libs/aiohttp/commit/2b920c39002cee0ec5b402581779bbaaf7c91...

PYSEC-2026-1221 Biopython is vulnerable to doctype XML external entity (XXE) injection through Bio.Entrez

Bio.Entrez in Biopython through 1.86 allows doctype XXE...

PYSEC-2026-1741 Open WebUI vulnerable to Stored DOM XSS via prompts when 'Insert Prompt as Rich Text' is enabled resulting in ATO/RCE

Summary The functionality that inserts custom prompts into the chat window is vulnerable to DOM XSS when 'Insert Prompt as Rich Text' is enabled, since the prompt body is assigned to the DOM sink .innerHtml without sanitisation. Any user with permissions to create prompts can abuse this to plant ...

PYSEC-2026-1487 Keras is vulnerable to arbitrary local file loading and Server-Side Request Forgery

The Keras.Model.loadmodel method, including when executed with the intended security mitigation safemode=True, is vulnerable to arbitrary local file loading and Server-Side Request Forgery SSRF. This vulnerability stems from the way the StringLookup layer is handled during model loading from a...

PYSEC-2026-1932 Python Social Auth - Django has unsafe account association

Impact Upon authentication, the user could be associated by e-mail even if the associatebyemail pipeline was not included. This could lead to account compromise when a third-party authentication service does not validate provided e-mail addresses or doesn't require unique e-mail addresses. Patche...

PYSEC-2026-1288 DataChain Vulnerable to Deserialization of Untrusted Data from Environment Variables

The DataChain library reads serialized objects from environment variables such as DATACHAINMETASTORE and DATACHAINWAREHOUSE in the loader.py module. An attacker with the ability to set these environment variables can trigger code execution when the application loads...

PYSEC-2026-1769 pgadmin4 is affected by a Cross-Origin Opener Policy (COOP) vulnerability

pgAdmin = 9.7 is affected by a Cross-Origin Opener Policy COOP vulnerability. This vulnerability allows an attacker to manipulate the OAuth flow, potentially leading to unauthorised account access, account takeover, data breaches, and privilege escalation...

PYSEC-2026-1169 Apache Superset data query improperly discloses database schema information to low-privileged guest user

When a guest user accesses a chart in Apache Superset, the API response from the /chart/data endpoint includes a query field in its payload. This field contains the underlying query, which improperly discloses database schema information, such as table names, to the low-privileged guest user. Thi...

PYSEC-2026-1747 OpenEXR Heap-Based Buffer Overflow in Deep Scanline Parsing via Forged Unpacked Size

Summary The OpenEXRCore code is vulnerable to a heap-based buffer overflow during a write operation when decompressing ZIPS-packed deep scan-line EXR files with a maliciously forged chunk header. Details When parsing STORAGEDEEPSCANLINE chunks from an EXR file, the following code from...

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...

PYSEC-2026-1986 Transformers's Improper Input Validation vulnerability can be exploited through username injection

Hugging Face Transformers versions up to 4.49.0 are affected by an improper input validation vulnerability in the imageutils.py file. The vulnerability arises from insecure URL validation using the startswith method, which can be bypassed through URL username injection. This allows attackers to...

PYSEC-2026-1999 urllib3 redirects are not disabled when retries are disabled on PoolManager instantiation

urllib3 handles redirects and retries using the same mechanism, which is controlled by the Retry object. The most common way to disable redirects is at the request level, as follows: python resp = urllib3.request"GET", "https://httpbin.org/redirect/1", redirect=False printresp.status 302 However,...

PYSEC-2026-1576 LLaMA-Factory allows Code Injection through improper vhead_file safeguards

Summary A critical remote code execution vulnerability was discovered during the Llama Factory training process. This vulnerability arises because the vheadfile is loaded without proper safeguards, allowing malicious attackers to execute arbitrary malicious code on the host system simply by passi...

PYSEC-2026-1922 SignXML's signature verification with HMAC is vulnerable to a timing attack

When verifying signatures with X509 certificate validation turned off and HMAC shared secret set signxml.XMLVerifier.verifyrequirex509=False, hmackey=..., prior versions of SignXML are vulnerable to a potential timing attack. The verifier may leak information about the correct HMAC when comparing...

PYSEC-2026-1281 Crawl4AI SSRF vulnerability

Crawl4AI =0.4.247 is vulnerable to SSRF in /crawl4ai/asyncdispatcher.py...

PYSEC-2026-1483 jupyterlab-git has a command injection vulnerability in "Open Git Repository in Terminal"

Overview On many platforms, a third party can create a Git repository under a name that includes a shell command substitution ^1 string in the syntax $. These directory names are allowed in macOS and a majority of Linux distributions ^2. If a user starts jupyter-lab in a parent directory of this...

PYSEC-2026-1392 Frappe vulnerable to information disclosure leading to account takeover

Impact Making crafted requests could lead to information disclosure that could further lead to account takeover. Workarounds There's no workaround to fix this without upgrading. Credits Thanks to Thanh of Calif.io for reporting the issue...

PYSEC-2026-1438 H2O Vulnerable to Denial of Service (DoS) via `HEAD` Request

A vulnerability in the typeahead endpoint of h2oai/h2o-3 version 3.46.0 allows for a denial of service. The endpoint performs a HEAD request to verify the existence of a specified resource without setting a timeout. An attacker can exploit this by sending multiple requests to an attacker-controll...

PYSEC-2026-1857 PyTorch Lightning denial of service vulnerability

A vulnerability in lightning-ai/pytorch-lightning version 2.3.2 allows an attacker to cause a denial of service by sending an unexpected POST request to the /api/v1/state endpoint of LightningApp. This issue occurs due to improper handling of unexpected state values, which results in the server...

PYSEC-2026-1742 Open WebUI Uncontrolled Resource Consumption vulnerability

A vulnerability in open-webui/open-webui v0.3.8 allows an unauthenticated attacker to sign up with excessively large text in the 'name' field, causing the Admin panel to become unresponsive. This prevents administrators from performing essential user management actions such as deleting, editing, ...

PYSEC-2026-1733 Open WebUI Uncontrolled Resource Consumption vulnerability

In version v0.3.32 of open-webui/open-webui, the application allows users to submit large payloads in the email and password fields during the sign-in process due to the lack of character length validation on these inputs. This vulnerability can lead to a Denial of Service DoS condition when a us...

PYSEC-2026-1458 imaginAIry Denial of Service (DoS) vulnerability

A Denial of Service DoS vulnerability exists in the brycedrennan/imaginairy repository, version 15.0.0. The vulnerability is present in the /api/stablestudio/generate endpoint, which can be exploited by sending an invalid request. This causes the server process to terminate abruptly, outputting...

PYSEC-2026-1563 LlamaIndex Improper Handling of Exceptional Conditions vulnerability

A vulnerability in the LangChainLLM class of the run-llama/llamaindex repository, version v0.12.5, allows for a Denial of Service DoS attack. The streamcomplete method executes the llm using a thread and retrieves the result via the getresponsegen method of the StreamingGeneratorCallbackHandler...

PYSEC-2026-1215 XPixelGroup BasicSR Command Injection

XPixelGroup BasicSR through 1.4.2 might locally allow code execution in contrived situations where "scontrol show hostname" is executed in the presence of a crafted SLURMNODELIST environment variable...

PYSEC-2026-1630 Mitmweb API Authentication Bypass Using Proxy Server

Impact In mitmweb 11.1.0 and below, a malicious client can use mitmweb's proxy server bound to :8080 by default to access mitmweb's internal API bound to 127.0.0.1:8081 by default. In other words, while the client cannot access the API directly good, they can access the API through the proxy bad...

PYSEC-2026-1147 Apache Airflow Fab Provider Insufficient Session Expiration vulnerability

Insufficient Session Expiration vulnerability in Apache Airflow Fab Provider. This issue affects Apache Airflow Fab Provider: before 1.5.2. When user password has been changed with admin CLI, the sessions for that user have not been cleared, leading to insufficient session expiration, thus logged...

PYSEC-2026-1156 Apache Superset: Lower privilege users are able to create Role when FAB_ADD_SECURITY_API is enabled

Improper Authorization vulnerability in Apache Superset when FABADDSECURITYAPI is enabled disabled by default. Allows for lower privilege users to use this API. issue affects Apache Superset: from 2.0.0 before 4.1.0. Users are recommended to upgrade to version 4.1.0, which fixes the issue...

PYSEC-2026-1611 Synapse allows a a malformed invite to break the invitee's `/sync`

Impact Synapse versions before 1.120.1 fail to properly validate invites received over federation. This vulnerability allows a malicious server to send a specially crafted invite that disrupts the invited user's /sync functionality. Patches Synapse 1.120.1 rejects such invalid invites received ov...

PYSEC-2026-1298 Django Filer Unrestricted Upload of File with Dangerous Type

Unrestricted Upload of File with Dangerous Type, Improper Input Validation, Improper Neutralization of Script-Related HTML Tags in a Web Page Basic XSS vulnerability in django CMS Association django Filer allows Input Data Manipulation, Stored XSS.This issue affects django Filer: from 3 before 3....