PYSEC-2026-4261 PraisonAI: Project custom command templates can read outside-workspace files into model prompts

Project custom command templates can read outside-workspace files into model prompts Summary PraisonAI's new file-based custom command feature auto-discovers project commands from .praisonai/commands/.md. When a user runs praisonai run --command inside a repository, the command body is interpolat...

PYSEC-2026-4260 PraisonAI: PGVector and Cassandra knowledge stores interpolate vector dimensions into DDL

PGVector and Cassandra knowledge stores interpolate vector dimensions into DDL Summary The PGVector and Cassandra knowledge-store backends validate SQL/CQL identifiers such as schema, keyspace, and collection names, but still insert the caller-controlled dimension argument directly into CREATE...

Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl

SummarySeveral remote-content download paths in Pydantic AI buffered the entire HTTP response body into memory before enforcing any size limit. An application that exposes the local web-fetch tool webfetchtool, or the WebFetch capability's local fallback to untrusted prompts can be driven to fetc...

PraisonAI: SkillTools Executes Scripts Without Path Containment Validation

SummarySkillTools.runskillscript accepts a scriptpath parameter and executes it via subprocess.run without any path containment validation. While FileTools has validatepath with traversal detection, SkillTools performs none. An LLM-directed call can execute arbitrary scripts from any filesystem...

Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl

SummarySeveral remote-content download paths in Pydantic AI buffered the entire HTTP response body into memory before enforcing any size limit. An application that exposes the local web-fetch tool webfetchtool, or the WebFetch capability's local fallback to untrusted prompts can be driven to fetc...

PYSEC-2026-4280 Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl

Summary Several remote-content download paths in Pydantic AI buffered the entire HTTP response body into memory before enforcing any size limit. An application that exposes the local web-fetch tool webfetchtool, or the WebFetch capability's local fallback to untrusted prompts can be driven to fet...

PYSEC-2026-4289 Pydantic AI: Unbounded memory use when downloading remote content via web_fetch or FileUrl

Summary Several remote-content download paths in Pydantic AI buffered the entire HTTP response body into memory before enforcing any size limit. An application that exposes the local web-fetch tool webfetchtool, or the WebFetch capability's local fallback to untrusted prompts can be driven to fet...

PraisonAI: PGVector and Cassandra knowledge stores interpolate vector dimensions into DDL

PGVector and Cassandra knowledge stores interpolate vector dimensions into DDL SummaryThe PGVector and Cassandra knowledge-store backends validate SQL/CQL identifiers such as schema, keyspace, and collection names, but still insert the caller-controlled dimension argument directly into CREATE TAB...

PYSEC-2026-4270 PraisonAI: SkillTools Executes Scripts Without Path Containment Validation

Summary SkillTools.runskillscript accepts a scriptpath parameter and executes it via subprocess.run without any path containment validation. While FileTools has validatepath with traversal detection, SkillTools performs none. An LLM-directed call can execute arbitrary scripts from any filesystem...

PYSEC-2026-4267 PraisonAI: Unsafe Dynamic Module Loading Leads to Arbitrary Code Execution via tools.py in AgentFlow

Summary An unsafe dynamic module loading vulnerability allows an attacker who can control a workflow file and a sibling tools.py to execute arbitrary Python code when the workflow is executed. Details The vulnerability is located in the workflow structured output resolution logic. File:...

PraisonAI: Unsafe Dynamic Module Loading Leads to Arbitrary Code Execution via tools.py in AgentFlow

SummaryAn unsafe dynamic module loading vulnerability allows an attacker who can control a workflow file and a sibling tools.py to execute arbitrary Python code when the workflow is executed. DetailsThe vulnerability is located in the workflow structured output resolution logic.File:...

PraisonAI: FastContext path resolution permits absolute and traversal reads outside the workspace

FastContext path resolution permits absolute and traversal reads outside the workspace SummaryPraisonAI's praisonaiagents.context.fast FastContext feature treats workspacepath as the root directory for code search, but its model-facing search tools and high-level readcontext helper accept absolut...

PYSEC-2026-4268 PraisonAI: FastContext path resolution permits absolute and traversal reads outside the workspace

FastContext path resolution permits absolute and traversal reads outside the workspace Summary PraisonAI's praisonaiagents.context.fast FastContext feature treats workspacepath as the root directory for code search, but its model-facing search tools and high-level readcontext helper accept absolu...

PraisonAI: DNS rebinding bypass in `web_crawl` SSRF protection allows internal response disclosure

SummaryPraisonAI's webcrawl agent tool performs a server-side HTTP fetch of an agent/attacker-influenced URL. SSRF is meant to be prevented by issafecrawlurl, which resolves the hostname and rejects private/loopback/link-local IPs at validation time. The validated value is the URL string not a...

Docling has arbitrary file read/write (and command execution when shell-escape is enabled) when rendering untrusted TikZ with the opt-in Tectonic engine

SummaryWhen the LaTeX backend is configured to render TikZ pictures with the Tectonic engine LatexBackendOptionstikzengine="tectonic", the TikZ body and the document preamble from the input file are compiled by Tectonic without any restriction on TeX's file primitives. A crafted .tex file can rea...

PYSEC-2026-4272 PraisonAI: DNS rebinding bypass in `web_crawl` SSRF protection allows internal response disclosure

Summary PraisonAI's webcrawl agent tool performs a server-side HTTP fetch of an agent/attacker-influenced URL. SSRF is meant to be prevented by issafecrawlurl, which resolves the hostname and rejects private/loopback/link-local IPs at validation time. The validated value is the URL string not a...

PYSEC-2026-4216 Docling has arbitrary file read/write (and command execution when shell-escape is enabled) when rendering untrusted TikZ with the opt-in Tectonic engine

Summary When the LaTeX backend is configured to render TikZ pictures with the Tectonic engine LatexBackendOptionstikzengine="tectonic", the TikZ body and the document preamble from the input file are compiled by Tectonic without any restriction on TeX's file primitives. A crafted .tex file can re...

PYSEC-2026-4234 Langflow : Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints

Summary Before Langflow 1.10.1, two deprecated but still-routed endpoints in the chat API did not check that the authenticated caller owns the flow referenced in the URL path: - POST /api/v1/build/flowid/vertices retrieveverticesorder - POST /api/v1/build/flowid/vertices/vertexid buildvertex Any...

PYSEC-2026-4238 Langflow : Cross-user flow access and vertex execution via deprecated /api/v1/build/{flow_id}/vertices endpoints

Summary Before Langflow 1.10.1, two deprecated but still-routed endpoints in the chat API did not check that the authenticated caller owns the flow referenced in the URL path: - POST /api/v1/build/flowid/vertices retrieveverticesorder - POST /api/v1/build/flowid/vertices/vertexid buildvertex Any...

PYSEC-2026-4230 Langflow has Authenticated Cross-Project File Disclosure via Unscoped MCP Resource Handlers

Summary Langflow's project-scoped MCP transport authenticates the caller for the projectid in the connection URL, but the subsequent resources/read operation does not authorize the resource URI being requested. An authenticated user can connect to their own project-scoped MCP endpoint and supply ...