Critical severity · published Apr 9, 2026
CVE-2026-40154
PraisonAI Affected by Untrusted Remote Template Code Execution
9.6
CVSS
0.3%
EPSS
No
On KEV
Description
PraisonAI is a multi-agent teams system. Prior to 4.5.128, PraisonAI treats remotely fetched template files as trusted executable code without integrity verification, origin validation, or user confirmation, enabling supply chain attacks through malicious templates. This vulnerability is fixed in 4.5.128.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)0.3% · higher than 23% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PR
PraisonAI · MervinPraison
< 4.5.128 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-40154
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-40154
Exploit
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-pv9q-275h-rh7x
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