High severity8.8NVD Advisory· Published Apr 8, 2026· Updated Apr 22, 2026
CVE-2026-39891
CVE-2026-39891
Description
PraisonAI is a multi-agent teams system. Prior to 4.5.115, the create_agent_centric_tools() function returns tools (like acp_create_file) that process file content using template rendering. When user input from agent.start() is passed directly into these tools without escaping, template expressions in the input are executed rather than treated as literal text. This vulnerability is fixed in 4.5.115.
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Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
praisonaiPyPI | < 4.5.115 | 4.5.115 |
Affected products
2Patches
Vulnerability mechanics
References
4- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-hwg5-x759-7wjgnvdVendor AdvisoryExploitWEB
- github.com/advisories/GHSA-hwg5-x759-7wjgghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-39891ghsaADVISORY
- github.com/MervinPraison/PraisonAI/releases/tag/v4.5.115ghsaWEB
News mentions
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