{"answers":{"affected":"6 open source packages ship an affected version, including praisonaiagents, PraisonAI and praisonai. It affects 2 products.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40288 exists.","fix":"Upgrade praisonaiagents to 1.5.140 or later.","what":"CVE-2026-40288 is a critical code injection vulnerability in MervinPraison PraisonAI, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40288 and fix it if it is affected.\n\nWhat it is: CVE-2026-40288 is a critical code injection vulnerability in MervinPraison PraisonAI, published on 14 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40288 exists.\n\nAffected packages and fixed versions:\n- praisonaiagents (PyPI): affected all versions; fixed in 1.5.140\n- praisonaiagents (PyPI): affected all versions; fixed in 1.5.140\n- praisonaiagents (PyPI): affected all versions; fixed in 1.5.140\n- PraisonAI (PyPI): affected all versions; fixed in 4.5.139\n- praisonai (PyPI): affected all versions; fixed in 4.5.139\n- praisonai (PyPI): affected all versions; fixed in 4.5.139\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-40288/ (Markdown: https://insights.sbomify.com/CVE-2026-40288/index.md)","id":"CVE-2026-40288","markdown":"https://insights.sbomify.com/CVE-2026-40288/index.md","name":"CVE-2026-40288","record":{"aliases":["GHSA-vc46-vw85-3wvm","PYSEC-2026-477","PYSEC-2026-488"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"Python AI agent library","requires_auth":"none","summary":"Attackers can execute arbitrary code on the host by supplying malicious YAML workflow files to the PraisonAI library.","user_interaction":"not_required","vuln_class":"code_injection"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"praisonai","vendor":"praison"},{"product":"praisonaiagents","vendor":"praison"}],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-94","name":"Improper Control of Generation of Code"},{"id":"CWE-78","name":"Improper Neutralization of Special Elements used in an OS Command"}],"description":"PraisonAI is a multi-agent teams system. In versions below 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents, the workflow engine is vulnerable to arbitrary command and code execution through untrusted YAML files. When praisonai workflow run \u003cfile.yaml\u003e loads a YAML file with type: job, the JobWorkflowExecutor in job_workflow.py processes steps that support run: (shell commands via subprocess.run()), script: (inline Python via exec()), and python: (arbitrary Python script execution)—all without any validation, sandboxing, or user confirmation. The affected code paths include action_run() in workflow.py and _exec_shell(), _exec_inline_python(), and _exec_python_script() in job_workflow.py. An attacker who can supply or influence a workflow YAML file (particularly in CI pipelines, shared repositories, or multi-tenant deployment environments) can achieve full arbitrary command execution on the host system, compromising the machine and any accessible data or credentials. This issue has been fixed in versions 4.5.139 of PraisonAI and 1.5.140 of praisonaiagents.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"PraisonAI: Critical RCE via `type: job` workflow YAML","id":"CVE-2026-40288","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"code_injection","year":"2026"},"n_packages":6,"n_references":1,"next":{"headline":"PraisonAI Browser Server allows unauthenticated WebSocket clients to hijack connected extension sessions","id":"CVE-2026-40289"},"packages":[{"ecosystem":"PyPI","fixed":["4.5.139"],"introduced":["0"],"last_affected":[],"package":"PraisonAI","purl":null,"source":"GHSA-vc46-vw85-3wvm"},{"ecosystem":"PyPI","fixed":["4.5.139"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"GHSA-vc46-vw85-3wvm"},{"ecosystem":"PyPI","fixed":["4.5.139"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"PYSEC-2026-477"},{"ecosystem":"PyPI","fixed":["1.5.140"],"introduced":["0"],"last_affected":[],"package":"praisonaiagents","purl":null,"source":"GHSA-vc46-vw85-3wvm"},{"ecosystem":"PyPI","fixed":["1.5.140"],"introduced":["0"],"last_affected":[],"package":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","source":"GHSA-vc46-vw85-3wvm"},{"ecosystem":"PyPI","fixed":["1.5.140"],"introduced":["0"],"last_affected":[],"package":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","source":"PYSEC-2026-488"}],"prev":{"headline":"PraisonAI has RCE via Automatic tools.py Import","id":"CVE-2026-40287"},"products":["PraisonAI","praisonaiagents"],"published":"2026-04-14","related":[{"cvss_score":10,"headline":"PraisonAIAgents has a sandbox escape via exception frame traversal in `execute_code` (subprocess mode)","id":"CVE-2026-39888","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"Incomplete fix for CVE-2026-34935: Command Injection in MervinPraison/PraisonAI","id":"CVE-2026-41497","kev_date_added":null,"published":"2026-05-08"},{"cvss_score":9.8,"headline":"PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading","id":"CVE-2026-39890","kev_date_added":null,"published":"2026-04-08"},{"cvss_score":9.8,"headline":"PraisonAI: Second-Order SQL Injection in `get_all_user_threads`","id":"CVE-2026-34934","kev_date_added":null,"published":"2026-04-03"},{"cvss_score":9.8,"headline":"PraisonAI: OS Command Injection in MCPHandler.parse_mcp_command()","id":"CVE-2026-34935","kev_date_added":null,"published":"2026-04-03"},{"cvss_score":9.7,"headline":"Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') in praisonai","id":"CVE-2026-40088","kev_date_added":null,"published":"2026-04-09"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"PyPA Advisory Database","prefix":"PYSEC"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-14","vendors":["MervinPraison"]},"summary":"Attackers can execute arbitrary code on the host by supplying malicious YAML workflow files to the PraisonAI library.","url":"https://insights.sbomify.com/CVE-2026-40288/"}