Vulnerability in Mervinpraison Praisonai
CVE-2026-61437
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 · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.002 (6.2th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 6th percentile — 6.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.002 · newest: 0.002 · change: 0.000
Affected products
- Mervinpraison Praisonai — versions 0, 1.6.78
Weakness classification (CWE)
References
- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4gfv-wg42-7jw5 (vendor-advisory)
- www.vulncheck.com/advisories/praisonai-before-remote-code-execution-via-tools-py (third-party-advisory)
Frequently asked questions
- What is CVE-2026-61437?
- CVE-2026-61437 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Protection Mechanism Failure. CVSS score: 7.8/10. Published 2026-07-10.
- How severe is CVE-2026-61437?
- High severity. CVSS v3 base score is 7.8 out of 10.