Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

SummaryDecepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

PYSEC-2026-4163 SCBE-AETHERMOORE Unauthenticated AetherBrowser Ops API Exposes Operator Email Digests

Summary The AetherBrowser API server scripts/aetherbrowser/apiserver.py exposes the POST /api/ops/check-email endpoint without any authentication. Any remote attacker can call this endpoint and trigger execution of the emailreader.py subprocess, which connects to configured ProtonMail or Gmail...

PYSEC-2026-4030 Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)

At a glance - Actor: attacker who controls the -o/--output argument to trestle author catalog,profile,ssp-generate e.g. via a CI pipeline that derives the output directory from repository-controlled data - Primitive: attacker-controlled --output value reaches trestleroot / args.output write sink...

Trestle is vulnerable to arbitrary file write via path traversal in author generate commands (Incomplete fix of CVE-2026-46345)

At a glance- Actor: attacker who controls the -o/--output argument to trestle author catalog,profile,ssp-generate e.g. via a CI pipeline that derives the output directory from repository-controlled data- Primitive: attacker-controlled --output value reaches trestleroot / args.output write sink wi...

SCBE-AETHERMOORE Unauthenticated AetherBrowser Ops API Exposes Operator Email Digests

SummaryThe AetherBrowser API server scripts/aetherbrowser/apiserver.py exposes the POST /api/ops/check-email endpoint without any authentication. Any remote attacker can call this endpoint and trigger execution of the emailreader.py subprocess, which connects to configured ProtonMail or Gmail...

Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

SummaryDecepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

Streamlink: HTTPSession follows HTTP redirects into file:// URLs, reading local files

SummaryHTTPSession mounts a FileAdapter for the file:// scheme and inherits redirect handlingunchanged from requests.Session. requests does not check for scheme downgrades orcross-protocol transitions when it follows a redirect, so any https request Streamlink makes canbe redirected by the remote...

PYSEC-2026-4032 Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

Summary Decepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

PYSEC-2026-4172 Streamlink: HTTPSession follows HTTP redirects into file:// URLs, reading local files

Summary HTTPSession mounts a FileAdapter for the file:// scheme and inherits redirect handling unchanged from requests.Session. requests does not check for scheme downgrades or cross-protocol transitions when it follows a redirect, so any https request Streamlink makes can be redirected by the...

PYSEC-2026-4033 Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

Summary Decepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

Decepticon: Role-boundary forgery via ChatML special-token literals in web crawl output composed into LLM context

SummaryDecepticon wraps web crawl results — the output of agent reconnaissance against target services — into LLM messages without neutralizing ChatML special-token literals. Under the BYOK Bring Your Own Key deployment model, users configure their own LLM credentials to any OpenAI-compatible...

PYSEC-2026-4104 MCP Atlassian: MCP HTTP Client Server-Local File Exfiltration via Unvalidated Attachment Upload Path

Summary The mcp-atlassian server exposes an MCP tool confluenceuploadattachment and the Jira attachment variant that accepts an arbitrary server-side file path and opens it for upload without any path validation. When the server is deployed in HTTP transport mode streamable-http or sse, a remote,...

psd-tools composite/numpy has uncontrolled memory allocation via crafted PSD geometry

SummaryPSDImage.composite and .numpy allocate the output image buffer from the PSD's header geometry width × height × channels × depth, and per-layer rectangles before validating those values against the actual file contents. A tiny crafted PSD declaring huge dimensions causes a multi-gigabyte...

MCP Atlassian: MCP HTTP Client Server-Local File Exfiltration via Unvalidated Attachment Upload Path

SummaryThe mcp-atlassian server exposes an MCP tool confluenceuploadattachment and the Jira attachment variant that accepts an arbitrary server-side file path and opens it for upload without any path validation. When the server is deployed in HTTP transport mode streamable-http or sse, a remote,...

PYSEC-2026-4139 psd-tools composite/numpy has uncontrolled memory allocation via crafted PSD geometry

Summary PSDImage.composite and .numpy allocate the output image buffer from the PSD's header geometry width × height × channels × depth, and per-layer rectangles before validating those values against the actual file contents. A tiny crafted PSD declaring huge dimensions causes a multi-gigabyte...

LMdeploy has Remote Code Execution by Pickle Deserialization via zmq_rpc.call_and_response() in InterLM/lmdeploy

DescriptionThe LMdeployimplements anrpc server AsyncRPCServer in zmqrpc.pyfor supporting the RPC communications. In its core functionalitycallandresponse, I found it will directly use thepickles.loadsto deserialize the received messages without any sanitization, hence resulting in a remote code...

PYSEC-2026-4079 LMdeploy has Remote Code Execution by Pickle Deserialization via zmq_rpc.call_and_response() in InterLM/lmdeploy

Description The LMdeploy implements an rpc server AsyncRPCServer in zmqrpc.py for supporting the RPC communications. In its core functionality callandresponse, I found it will directly use the pickles.loads to deserialize the received messages without any sanitization, hence resulting in a remote...

PYSEC-2026-4134 PickleScan has multiple stdlib modules with direct RCE not in blocklist

Summary picklescan v1.0.3 latest does not block at least 7 Python standard library modules that provide direct arbitrary command execution or code evaluation. A malicious pickle file importing these modules is reported as having 0 issues CLEAN scan. This enables remote code execution that bypasse...

PickleScan has multiple stdlib modules with direct RCE not in blocklist

Summarypicklescan v1.0.3 latest does not block at least 7 Python standard library modules that provide direct arbitrary command execution or code evaluation. A malicious pickle file importing these modules is reported as having 0 issues CLEAN scan. This enables remote code execution that bypasses...

PYSEC-2026-4135 Picklescan missing detection when calling built-in python library function timeit.timeit()

Summary Using timeit.timeit function, which is a built-in python library function to execute remote pickle file. Details Pickle’s deserialization process is known to allow execution of function via reduce method. While Picklescan is meant to detect such exploits, this attack evades detection by...