High severity8.8NVD Advisory· Published Apr 10, 2026· Updated Apr 24, 2026
CVE-2026-40157
CVE-2026-40157
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
PraisonAIPyPI | >= 2.7.2, < 4.5.128 | 4.5.128 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/MervinPraison/PraisonAI/security/advisories/GHSA-99g3-w8gr-x37cnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-99g3-w8gr-x37cghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-40157ghsaADVISORY
- github.com/MervinPraison/PraisonAI/releases/tag/v4.5.128ghsaWEB
News mentions
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