CVE-2026-61427
HighCVSS 7.3Exploitation Probability (EPSS)
Low risk26th percentile - higher than 26% of all known CVEs
Summary
PraisonAI before version 4.6.78 exposes the MCP HTTP-stream transport without authentication by default. When an operator runs the server without an API key, an unauthenticated client can initialize a session, enumerate available tools, and invoke them. Additionally, the server does not validate tool-call arguments against the advertised inputSchema.
Risk Assessment
The risk involves unauthorized access to MCP tools, potentially leading to data leakage or execution of unwanted operations. If the server is bound to a network-accessible address, external attackers can exploit this vulnerability.
Recommendation
Upgrade PraisonAI to version 4.6.78 or later. If upgrading is not possible, always configure an API key using the --api-key option and avoid binding the server to 0.0.0.0.
Other vulnerabilities in PraisonAI
See all- 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.
- CVE-2026-57118Critical
In PraisonAI prior to praisonaiagents 1.6.59, AgentTeam.launch and the Agents alias register GET /{path}/list, POST /{path}, and POST /{path}/{agent_id} without access-control checks before listing agents or calling agent.chat. A remotely exposed server can therefore let unauthenticated clients enumerate agents, consume model resources, access connected private context, and trigger agent tools or workflow side effects.
- CVE-2026-62176Critical
PraisonAI prior to version 4.6.78 has a vulnerability in the `deploy/api.py` module that generates Python server code by directly interpolating the `agents_file` parameter into an f-string, which is then written to a file and executed via `subprocess.Popen()`. An attacker who controls the `agents_file` value can inject arbitrary Python code.
- CVE-2026-57148Critical
In PraisonAI prior to 0.1.6, when PLATFORM_JWT_SECRET is unset, the public dev-secret-change-me HS256 signing key is used, and startup and token-issuance guards are disabled because PLATFORM_ENV defaults to dev. An unauthenticated attacker can sign a JWT with an arbitrary sub value that is accepted as an authenticated identity, enabling impersonation of a user or workspace owner.
Original NVD description (English source)
PraisonAI before 4.6.78 exposes the MCP HTTP-stream transport without authentication by default: the CLI --api-key option defaults to None, and the server only enforces Authorization/Bearer checks when an API key is configured. When an operator runs 'praisonai mcp serve --transport http-stream' without an API key, an unauthenticated client (no Authorization header, and no Origin header, which is also permitted) can initialize a session, enumerate the available tools (tools/list), and invoke tools (tools/call). Additionally, the dispatcher forwards tool-call arguments to handlers without validating them against the advertised inputSchema. The server binds to 127.0.0.1 by default, so remote exploitation requires the operator to bind to a network-accessible address (e.g., --host 0.0.0.0).
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

