Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The praisonaiagents package before 1.6.78 is vulnerable to arbitrary Python code execution. When a workflow step uses a string output_pydantic reference, the framework automatically imports and runs a tools.py file located next to the workflow file, without the environment-variable protections used elsewhere. An attacker who can place a workflow file and a matching tools.py in a location the application loads from could run code with the privileges of the workflow process. Upgrade to praisonaiagents 1.6.78 or later.
Not analysed yet
We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.
Severity and exploitation
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 8.5 | High | 4.0 | CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N | CNA (VulnCheck) |
- CISA KEV Not listed.
- EPSS 0.0020, the 9th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:08 UTC First seen by agentprime
- 31 Oct 2026, 14:08 UTC Confirmed by OSV