CVE-2026-56838

PraisonAI recipe.run_stream skips dangerous-tool policy enforcement

State
Published
Severity
7.8 High
Published
Oct 23, 2026
Updated
Oct 29, 2026
Reserved
Jun 23, 2026

Read the record on cve.org

Description

PraisonAI is a multi-agent teams system. From version 4.5.87 to before version 4.6.59, PraisonAI recipe execution blocks default-denied dangerous tools unless the caller explicitly passes allow_dangerous_tools=True. The normal recipe.run() path enforces this with _check_tool_policy(). The streaming path, recipe.run_stream(), loads the same recipe, checks dependencies, and then calls _execute_recipe() without running the dangerous-tool policy check. As a result, a recipe that honestly declares execute_command in TEMPLATE.yaml requires.tools is denied by recipe.run(), but reaches the execution engine through recipe.run_stream() with allow_dangerous_tools=False. This issue has been patched in version 4.6.59.

Scores

CVSSScoreVectorSource
3.17.8 HighCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HGitHub_M

Weaknesses

  • CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
  • CWE-693 Protection Mechanism Failure
  • CWE-863 Incorrect Authorization

Affected Products

ProductVersions
PraisonAIMervinPraison
  • >= 4.5.87, < 4.6.59Affected

References

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