CVE-2026-40157

critical · 9.4

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.

9.4

CVSS

0.4%

EPSS (exploit prob.)

32nd

EPSS percentile

2026-04-10

Published

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Weaknesses

CWE-22

Affected products

Vendor	Product	Affected versions
praison	praisonai	< 4.5.128

Check a specific version with /api/v1/cve/match.

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-99g3-w8gr-x37c
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-99g3-w8gr-x37c

Query this programmatically:

curl https://evil-db.io/api/v1/cve/CVE-2026-40157