PYSEC-2026-2545 kedro-datasets has a path traversal vulnerability in PartitionedDataset that allows arbitrary file write

Impact PartitionedDataset in kedro-datasets was vulnerable to path traversal. Partition IDs were concatenated directly with the dataset base path without validation. An attacker or malicious input containing .. components in a partition ID could cause files to be written outside the configured...

PYSEC-2026-2533 LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service)

Summary The LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a...

PYSEC-2026-2396 Improper S3 ownership verification in Bedrock AgentCore Starter Toolkit

Summary An issue has been identified in the Bedrock AgentCore Starter Toolkit versions prior to v0.1.13 that may allow a remote actor to inject code during the build process, leading to code execution in the AgentCore Runtime. Impact A remote actor could inject code during the build process,...

PYSEC-2026-3027 pypdf: Manipulated FlateDecode XFA streams can exhaust RAM

Impact An attacker who uses this vulnerability can craft a PDF which leads to the RAM being exhausted. This requires accessing the xfa property of a reader or writer and the corresponding stream being compressed using /FlateDecode. Patches This has been fixed in pypdf==6.7.3. Workarounds If...

PYSEC-2026-2527 Isso affected by Stored XSS via comment website field

Impact This is a stored Cross-Site Scripting XSS vulnerability affecting the website and author comment fields. The website field was HTML-escaped using quote=False, which left single and double quotes unescaped. Since the frontend inserts the website value directly into a single-quoted href...

PYSEC-2026-2500 Google Cloud Vertex AI has a a vulnerability involving predictable bucket naming

Predictable bucket naming in Vertex AI Experiments in Google Cloud Vertex AI from version 1.21.0 up to but not including 1.133.0 on Google Cloud Platform allows an unauthenticated remote attacker to achieve cross-tenant remote code execution, model theft, and poisoning via pre-creating predictabl...

PYSEC-2026-3432 yt-dlp: Arbitrary Command Injection when using the `--netrc-cmd` option

Summary When yt-dlp's --netrc-cmd command-line option or netrccmd Python API parameter is used, an attacker could achieve arbitrary command injection on the user's system with a maliciously crafted URL. Impact yt-dlp maintainers assume the impact of this vulnerability to be high for anyone who us...

PYSEC-2026-3015 pypdf possibly has long runtimes for malformed FlateDecode streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires a malformed /FlateDecode stream, where the byte-by-byte decompression is used. Patches This has been fixed in pypdf==6.7.1. Workarounds If you cannot upgrade yet, consider applying the chang...

PYSEC-2026-2562 LangChain affected by SSRF via image_url token counting in ChatOpenAI.get_num_tokens_from_messages

Server-Side Request Forgery SSRF in ChatOpenAI Image Token Counting Summary The ChatOpenAI.getnumtokensfrommessages method fetches arbitrary imageurl values without validation when computing token counts for vision-enabled models. This allows attackers to trigger Server-Side Request Forgery SSRF...

PYSEC-2026-2627 MCP Run Python Deno Sandbox Misconfiguration Allows SSRF Attacks via Localhost Access

Impact Server-Side Request Forgery SSRF: A security vulnerability exists in the mcp-run-python tool specifically within the Pydantic-AI integration due to an overly permissive Deno sandbox configuration. The tool configures the Deno runtime—which is intended to isolate the execution of untrusted...

PYSEC-2026-2629 MCP-Salesforce's arbitrary attribute access leads to disclosure of Salesforce auth token

Impact Disclosure of Salesforce OAuth bearer tokens used by the MCP. Patches fix applied in 0.1.10 Workarounds Rotate any Salesforce tokens/credentials used by MCP-Salesforce...

Malciously crafted QPY files can allows Remote Attackers to Cause Denial of Service in Qiskit

ImpactA maliciously crafted QPY file containing a malformed symengine serialization stream as part of the larger QPY serialization of a ParameterExpression object can cause a segfault within the symengine library, allowing an attacker to terminate the hosting process deserializing the QPY payload...

PYSEC-2026-3045 Malciously crafted QPY files can allows Remote Attackers to Cause Denial of Service in Qiskit

Impact A maliciously crafted QPY file containing a malformed symengine serialization stream as part of the larger QPY serialization of a ParameterExpression object can cause a segfault within the symengine library, allowing an attacker to terminate the hosting process deserializing the QPY payloa...

PYSEC-2026-3331 TensorFlow has segfault in array_ops.upper_bound

Impact arrayops.upperbound causes a segfault when not given a rank 2 tensor. Patches We have patched the issue in GitHub commit 915884fdf5df34aaedd00fc6ace33a2cfdefa586. The fix will be included in TensorFlow 2.13. We will also cherrypick this commit in TensorFlow 2.12.1. For more information...

PYSEC-2026-2453 Docassemble unauthorized access through URL manipulation

Impact The vulnerability allows attackers to gain unauthorized access to information on the system through URL manipulation. It affects versions 1.4.53 to 1.4.96. Patches The vulnerability has been patched in version 1.4.97 of the master branch. The Docker image on docker.io has been patched...

PYSEC-2026-2325 Information disclosure in AccessControl

Impact Python's "format" functionality allows someone controlling the format string to "read" objects accessible recursively via attribute access and subscription from accessible objects. Those attribute accesses and subscriptions use Python's full blown getattr and getitem, not the policy...

PYSEC-2026-3182 TensorFlow Denial of Service vulnerability

Impact A malicious invalid input crashes a tensorflow model Check Failed and can be used to trigger a denial of service attack. To minimize the bug, we built a simple single-layer TensorFlow model containing a Convolution3DTranspose layer, which works well with expected inputs and can be deployed...

PYSEC-2026-3130 TensorFlow vulnerable to integer overflow in EditDistance

Impact TFversion 2.11.0 //tensorflow/core/ops/arrayops.cc:1067 const Tensor hypothesisshapet = c-inputtensor2; std::vector dimshypothesisshapet-NumElements - 1; for int i = 0; i MakeDimstd::maxhvaluesi, tvaluesi; if hypothesisshapet is empty, hypothesisshapet-NumElements - 1 will be integer...

PYSEC-2026-3231 TensorFlow vulnerable to seg fault in `tf.raw_ops.Print`

Impact When the parameter summarize of tf.rawops.Print is zero, the new method SummarizeArray will reference to a nullptr, leading to a seg fault. python import tensorflow as tf tf.rawops.Printinput = tf.constant1, 1, 1, 1,dtype=tf.int32, data = False, False, False, False, False, False, False,...

PYSEC-2026-3142 TensorFlow vulnerable to Out-of-Bounds Read in DynamicStitch

Impact If the parameter indices for DynamicStitch does not match the shape of the parameter data, it can trigger an stack OOB read. python import tensorflow as tf func = tf.rawops.DynamicStitch para='indices': 0xdeadbeef, 405, 519, 758, 1015, 'data': 110.27793884277344, 120.29475402832031,...