{"cve":"CVE-2026-40153","nvd":{"published":"2026-04-09T22:16:36.350","modified":"2026-10-26T21:10:00.170","status":"Analyzed","description":"PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, the execute_command function in shell_tools.py calls os.path.expandvars() on every command argument at line 64, manually re-implementing shell-level environment variable expansion despite using shell=False (line 88) for security. This allows exfiltration of secrets stored in environment variables (database credentials, API keys, cloud access keys). The approval system displays the unexpanded $VAR references to human reviewers, creating a deceptive approval where the displayed command differs from what actually executes. This vulnerability is fixed in 1.5.128.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","score":6.5},"cwes":["CWE-526"],"references":["https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-v8g7-9q6v-p3x8","https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-v8g7-9q6v-p3x8"],"products":["praison:praisonaiagents"],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-40153","score":0.00273,"percentile":0.19461,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-v8g7-9q6v-p3x8","url":"https://osv.dev/vulnerability/GHSA-v8g7-9q6v-p3x8","summary":"PraisonAIAgents: Environment Variable Secret Exfiltration via os.path.expandvars() Bypassing shell=False in Shell Tool","modified":"2026-07-13T16:43:19.757361567Z","packages":[{"ecosystem":"PyPI","name":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","ranges":["<1.5.128"],"fixed":["1.5.128"]}]},{"id":"PYSEC-2026-2953","url":"https://osv.dev/vulnerability/PYSEC-2026-2953","summary":"PraisonAIAgents: Environment Variable Secret Exfiltration via os.path.expandvars() Bypassing shell=False in Shell Tool","modified":"2026-07-13T16:32:07.153195708Z","packages":[{"ecosystem":"PyPI","name":"praisonaiagents","purl":"pkg:pypi/praisonaiagents","ranges":["<1.5.128"],"fixed":["1.5.128"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}