{"answers":{"affected":"3 open source packages ship an affected version, including praisonai and PraisonAI. It affects 1 product.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40112 exists.","fix":"Upgrade praisonai to 4.5.128 or later.","what":"CVE-2026-40112 is a medium-severity cross-site scripting vulnerability in MervinPraison PraisonAI, published on 9 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-40112 and fix it if it is affected.\n\nWhat it is: CVE-2026-40112 is a medium-severity cross-site scripting vulnerability in MervinPraison PraisonAI, published on 9 Apr 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40112 exists.\n\nAffected packages and fixed versions:\n- praisonai (PyPI): affected all versions; fixed in 4.5.128\n- praisonai (PyPI): affected all versions; fixed in 4.5.128\n- PraisonAI (PyPI): affected all versions; fixed in 4.5.128\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-2026-40112/ (Markdown: https://insights.sbomify.com/CVE-2026-40112/index.md)","id":"CVE-2026-40112","markdown":"https://insights.sbomify.com/CVE-2026-40112/index.md","name":"CVE-2026-40112","record":{"aliases":["GHSA-cfg2-mxfj-j6pw","PYSEC-2026-2910"],"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 inject arbitrary JavaScript into PraisonAI agent outputs, leading to stored XSS in browsers viewing the API.","user_interaction":"required","vuln_class":"xss"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"praisonai","vendor":"praison"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-79","name":"Improper Neutralization of Input During Web Page Generation"}],"description":"PraisonAI is a multi-agent teams system. Prior to 4.5.128, the Flask API endpoint in src/praisonai/api.py renders agent output as HTML without effective sanitization. The _sanitize_html function relies on the nh3 library, which is not listed as a required or optional dependency in pyproject.toml. When nh3 is absent (the default installation), the sanitizer is a no-op that returns HTML unchanged. An attacker who can influence agent input (via RAG data poisoning, web scraping results, or prompt injection) can inject arbitrary JavaScript that executes in the browser of anyone viewing the API output. This vulnerability is fixed in 4.5.128.","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 has Stored XSS via Unsanitized Agent Output in HTML Rendering (nh3 Not a Required Dependency)","id":"CVE-2026-40112","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"PyPI","product":null,"products":[],"type":"xss","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"PraisonAI has an Argument Injection into Cloud Run Environment Variables via Unsanitized Comma in gcloud --set-env-vars","id":"CVE-2026-40113"},"packages":[{"ecosystem":"PyPI","fixed":["4.5.128"],"introduced":["0"],"last_affected":[],"package":"PraisonAI","purl":null,"source":"GHSA-cfg2-mxfj-j6pw"},{"ecosystem":"PyPI","fixed":["4.5.128"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"GHSA-cfg2-mxfj-j6pw"},{"ecosystem":"PyPI","fixed":["4.5.128"],"introduced":["0"],"last_affected":[],"package":"praisonai","purl":"pkg:pypi/praisonai","source":"PYSEC-2026-2910"}],"prev":{"headline":"PraisonAIAgents has an OS Command Injection via shell=True in Memory Hooks Executor (memory/hooks.py)","id":"CVE-2026-40111"},"products":["PraisonAI"],"published":"2026-04-09","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":"no","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-04-14","vendors":["MervinPraison"]},"summary":"Attackers can inject arbitrary JavaScript into PraisonAI agent outputs, leading to stored XSS in browsers viewing the API.","url":"https://insights.sbomify.com/CVE-2026-40112/"}