Vulnerability Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, cmd_unpack in the recipe CLI extracts .praison tar archives using raw tar.extract() without validating archive member paths. A .praison bundle containing ../../ entries will write files outside the intended output directory. An attacker who distributes a malicious bundle can overwrite arbitrary files on the victim's filesystem when they run praisonai recipe unpack. This vulnerability is fixed in 4.5.128.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Praison | Praisonai | < 4.5.128 |
Related Weaknesses (CWE)
References
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-99g3-w8gr-x3ExploitVendor Advisory
- https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-99g3-w8gr-x3ExploitVendor Advisory
FAQ
What is CVE-2026-40157?
CVE-2026-40157 is a vulnerability with a CVSS score of 8.8 (HIGH). PraisonAI is a multi-agent teams system. Prior to 4.5.128, cmd_unpack in the recipe CLI extracts .praison tar archives using raw tar.extract() without validating archive member paths. A .praison bundl...
How severe is CVE-2026-40157?
CVE-2026-40157 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-40157?
Check the references section above for vendor advisories and patch information. Affected products include: Praison Praisonai.