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.
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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
2Patches
Vulnerability mechanics
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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