CVE-2026-61437 | THREATINT

Description

PraisonAI (pip package praisonaiagents) before 1.6.78 contains an unsafe dynamic module loading vulnerability in AgentFlow._resolve_pydantic_class (src/praisonai-agents/praisonaiagents/workflows/workflows.py). When a workflow step uses a string output_pydantic reference, the framework locates and imports a sibling tools.py from the workflow file's directory via importlib exec_module without sandboxing, ignoring the PRAISONAI_ALLOW_*_TOOLS environment variables. An attacker who controls a workflow file and its sibling tools.py can execute arbitrary Python code with the workflow runner's privileges when the workflow is executed via WorkflowManager or after load_yaml.

PUBLISHED Reserved 2026-07-09 | Published 2026-07-10 | Updated 2026-07-14 | Assigner VulnCheck

HIGH: 8.5CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

HIGH: 7.8CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Problem types

Protection Mechanism Failure

Product status

Default status

unaffected

Any version before 1.6.78

affected

1.6.78 (semver)

unaffected

Credits

Nx7n reporter

References

github.com/...isonAI/security/advisories/GHSA-4gfv-wg42-7jw5 exploit

github.com/...isonAI/security/advisories/GHSA-4gfv-wg42-7jw5 (GitHub Security Advisory (GHSA-4gfv-wg42-7jw5)) vendor-advisory

www.vulncheck.com/...fore-remote-code-execution-via-tools-py (VulnCheck Advisory: PraisonAI before 1.6.78 Remote Code Execution via tools.py) third-party-advisory

cve.org (CVE-2026-61437)

nvd.nist.gov (CVE-2026-61437)

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