{"answers":{"affected":"3 open source packages ship an affected version, including praisonai. It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-39889 in the wild and no public exploit code.","fix":"Upgrade praisonai to 4.5.115 or later.","what":"CVE-2026-39889 is a high-severity vulnerability in MervinPraison PraisonAI, published on 8 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-2026-39889 and fix it if it is affected.\n\nWhat it is: CVE-2026-39889 is a high-severity vulnerability in MervinPraison PraisonAI, published on 8 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-39889 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- praisonai (PyPI): affected all versions; fixed in 4.5.115\n- praisonai (PyPI): affected all versions; fixed in 4.5.115\n- praisonai (PyPI): affected all versions; fixed in 4.5.115\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-2026-39889/ (Markdown: https://insights.sbomify.com/CVE-2026-39889/index.md)","id":"CVE-2026-39889","markdown":"https://insights.sbomify.com/CVE-2026-39889/index.md","name":"CVE-2026-39889","record":{"aliases":["GHSA-f292-66h9-fpmf","PYSEC-2026-2911"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"PraisonAI multi-agent system","requires_auth":"none","summary":"Unauthenticated access to A2U event streams allows attackers to view all agent activity in PraisonAI.","user_interaction":"not_required","vuln_class":"information_disclosure"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"praisonai","vendor":"praison"}],"cvss":{"score":7.5,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"PraisonAI is a multi-agent teams system. Prior to 4.5.115, the A2U (Agent-to-User) event stream server in PraisonAI exposes all agent activity without authentication. The create_a2u_routes() function registers the following endpoints with NO authentication checks: /a2u/info, /a2u/subscribe, /a2u/events/{stream_name}, /a2u/events/sub/{id}, and /a2u/health. This vulnerability is fixed in 4.5.115.","ecosystems":["PyPI"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"PraisonAI has Unauthenticated SSE Event Stream Exposes All Agent Activity in A2U Server","id":"CVE-2026-39889","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"information_disclosure","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"PraisonAI Affected by Remote Code Execution via YAML Deserialization in Agent Definition Loading","id":"CVE-2026-39890"},"packages":[{"ecosystem":"PyPI","fixed":["4.5.115"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":null,"source":"GHSA-f292-66h9-fpmf"},{"ecosystem":"PyPI","fixed":["4.5.115"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"GHSA-f292-66h9-fpmf"},{"ecosystem":"PyPI","fixed":["4.5.115"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"PYSEC-2026-2911"}],"prev":{"headline":"PraisonAIAgents has a sandbox escape via exception frame traversal in `execute_code` (subprocess mode)","id":"CVE-2026-39888"},"products":["PraisonAI"],"published":"2026-04-08","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: Critical RCE via `type: job` workflow YAML","id":"CVE-2026-40288","kev_date_added":null,"published":"2026-04-14"},{"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":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-10","vendors":["MervinPraison"]},"summary":"Unauthenticated access to A2U event streams allows attackers to view all agent activity in PraisonAI.","url":"https://insights.sbomify.com/CVE-2026-39889/"}