CVE-2026-61438
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedPraisonAI before 4.6.78 contains a remote code execution vulnerability in JobWorkflowExecutor._exec_inline_python() due to insufficient AST validation of workflow script steps. Attackers can create malicious YAML workflow files with import os statements followed by os.system() calls that bypass sandbox checks and execute arbitrary OS commands with process privileges.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidencePraisonAI before 4.6.78 has a remote code execution vulnerability in JobWorkflowExecutor._exec_inline_python() where insufficient AST validation allows attackers to bypass sandbox checks using malicious YAML workflow files containing import os statements followed by os.system() calls, enabling arbitrary OS command execution.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Local
- Complexity
- Low
- Privileges
- Low
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Check installed PraisonAI versionRun 'pip show praisonai' or 'pip list | grep -i praisonai' to retrieve the installed version numberAffected if Version is lower than 4.6.78 (e.g., 4.6.77, 4.6.0, etc.)
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Locate JobWorkflowExecutor moduleSearch for the file containing JobWorkflowExecutor class, typically in the main praisonai package directory using 'find . -type f -name "*.py" | xargs grep -l "JobWorkflowExecutor"'Affected if The _exec_inline_python method exists in the codebase and can be imported
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Inspect AST validation logicExamine the _exec_inline_python method source code for presence of AST validation that blocks dangerous imports (os, sys, subprocess) and calls (system, popen, exec)Affected if No strict AST validation is implemented, or validation can be bypassed with import statements followed by os.system() patterns
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Check YAML workflow file processingIdentify if the application loads YAML workflow files from untrusted sources and passes them to the workflow executorAffected if YAML workflow files are loaded and executed without sanitization of python code blocks containing import statements
A user is affected if their installed PraisonAI version is below 4.6.78 and they process YAML workflow files that can be crafted to contain malicious import statements bypass the AST validation in _exec_inline_python().
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scopedUpgrade to PraisonAI version 4.6.78 or later, and implement strict AST validation to block dangerous imports and function calls in workflow scripts.
4.6.78 or later
- Verify current installed version of PraisonAI using pip show praisonai or pip list
- Upgrade PraisonAI to version 4.6.78 or later using: pip install --upgrade praisonai
- Verify the upgrade was successful by checking the installed version matches or exceeds 4.6.78
- Test that legitimate workflow files continue to function correctly after the upgrade
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation3.0 h
- Implementation6.0 h
- Testing3.0 h
- Review / QA2.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-61438 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-61438 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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