critical9.4
CVE-2026-40157
PraisonAI vulnerable to arbitrary file write via path traversal in `praisonai recipe unpack`
Impact
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
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| pip | PraisonAI | >= 2.7.2, < 4.5.128 | 4.5.128 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Praison | Praisonai | before 4.5.128 |