CVE-2026-47391
CriticalCVSS 9.8Exploitation Probability (EPSS)
Elevated risk52th percentile - higher than 52% of all known CVEs
Summary
PraisonAI before version 4.6.40 includes an example A2A server that exposes an unauthenticated A2A JSON-RPC endpoint and registers a calculate(expression) tool implemented with Python eval(). The server binds to 0.0.0.0. A remote unauthenticated attacker can send message/send to /a2a, causing the LLM to invoke the calculate tool, leading to arbitrary Python execution on the server. The vulnerability affects deployments following the official A2A example or similar unauthenticated A2A deployments with unsafe tools.
Risk Assessment
An attacker can remotely execute arbitrary Python code on the server, leading to full system compromise, data theft, and application takeover.
Recommendation
Update PraisonAI to version 4.6.40 or later, which fixes this vulnerability.
Other vulnerabilities in PraisonAI
See all- CVE-2026-57132High
In PraisonAI prior to 4.6.62, setting PRAISONAI_CALL_AUTH to disabled makes verify_token accept requests to /api/v1/agents/{id}/invoke without CALL_SERVER_TOKEN authentication. Deployments using the advertised opt-out can expose registered agents and their connected tools or private context to unauthenticated invocation.
- CVE-2026-57119High
In PraisonAI prior to 4.6.59, the unauthenticated Jobs API accepts an absolute or traversing agent_file path in POST /api/v1/runs and passes it to the job executor without a workspace allowlist or boundary check. A remote caller can cause the server to open files accessible to the service account, exposing credentials, keys, environment variables, and other local data.
- CVE-2026-56839High
In PraisonAI prior to 4.6.59, the CODE_TOOLS wrappers keep _workspace_root as None and pass workspace=None to read_file, search_replace, and apply_diff helpers that enforce path containment only for a truthy workspace. An application exposing code_read_file, code_search_replace, or code_apply_diff before set_workspace can let prompt-influenced calls read and modify files outside the intended project directory.
- CVE-2026-61434High
A vulnerability in PraisonAI before version 4.6.78 allows bypassing the shell command allowlist by using find's built-in actions (-exec, -execdir, -delete). Attackers can execute unauthorized commands, read or delete files without triggering shell metacharacter filters.
- CVE-2026-61432Medium
A path traversal vulnerability in PraisonAI (praisonaiagents) before version 1.6.78 in the FastContext feature. The FastContextAgent.execute_tool() function does not properly validate absolute paths or canonicalize relative paths, allowing reading, searching, and enumerating files outside the intended workspace directory.
- CVE-2026-61431Medium
PraisonAI before version 4.6.78 contains a path traversal vulnerability in the ContextGatherer component that fails to validate include paths in .praisoncontext and .praisoninclude files. Attackers can supply absolute paths or parent directory traversal sequences to read arbitrary files outside the workspace and include their contents in the generated context bundle.
- CVE-2026-60091High
PraisonAI before version 4.6.78 contains an unauthenticated server-side request forgery vulnerability in the Jobs API /api/v1/runs endpoint. The webhook_url parameter is validated at request time but re-resolved at connection time, allowing attackers to use DNS rebinding to reach internal services with a blind SSRF attack.
- CVE-2026-60089Medium
A vulnerability in PraisonAI (praisonaiagents) before version 1.6.78 automatically loads defaults from a project-local .praisonai/config.toml without validating the output.output_file path. An attacker can set this path to an absolute or '..' traversal path, causing agent.start() without an output parameter to overwrite files outside the project root.
- CVE-2026-44340High
In the multi-agent system PraisonAI prior to version 4.6.37, a vulnerability allows the exploitation of symlinks to write arbitrary data to a chosen location on the victim's filesystem. The issue stems from the lack of validation for member.linkname and not rejecting symlink/hardlink members.
- CVE-2026-44334High
In the multi-agent system PraisonAI, versions from 4.5.139 to before 4.6.32 have a vulnerability related to unauthorized file imports. The tool_override.py file lacks safeguards, allowing remote code execution by an attacker.
Original NVD description (English source)
PraisonAI is a multi-agent teams system. Prior to version 4.6.40, PraisonAI's first-party A2A server example exposes an unauthenticated A2A JSON-RPC endpoint and registers a `calculate(expression)` tool implemented with Python `eval()`. The example also binds to `0.0.0.0`. A remote unauthenticated attacker can send `message/send` to `/a2a`; the request reaches `agent.chat()`, and a real LLM can invoke the registered `calculate` tool. In testing with `gemini/gemini-2.5-flash-lite`, this resulted in arbitrary Python execution in the server process, confirmed by creation of a marker file from an unauthenticated HTTP request. The issue affects deployments following the official A2A example or similar unauthenticated public A2A deployments with unsafe tools. The default unauthenticated A2A surface also exposes task history and task cancellation APIs, increasing confidentiality and integrity impact. Version 4.6.40 patches the issue.

