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CVE-2026-40148

MEDIUM CVSS 3.1: 6.5 EPSS 0.04%
Updated Apr 17, 2026
Praisonai
Parameter Value
CVSS 6.5 (MEDIUM)
Affected Versions before 4.5.128
Fixed In 4.5.128
Type CWE-409
Vendor Praisonai
Public PoC No

PraisonAI is a multi-agent teams system. Prior to 4.5.128, the _safe_extractall() function in PraisonAI's recipe registry validates archive members against path traversal attacks but performs no checks on individual member sizes, cumulative extracted size, or member count before calling tar.extractall(). An attacker can publish a malicious recipe bundle containing highly compressible data (e.g., 10GB of zeros compressing to ~10MB) that exhausts the victim's disk when pulled via LocalRegistry.pull() or HttpRegistry.pull().

This vulnerability is fixed in 4.5.128.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Privileges Required
None
No privileges needed
User Interaction
Required
User action required

Impact Assessment

Confidentiality
None
No data leak
Integrity
None
No data modification
Availability
High
Complete denial of service

CVSS Vector v3.1

Weakness Type (CWE)

Vulnerable Products 1

Configuration From (including) Up to (excluding)
Praison Praisonai
cpe:2.3:a:praison:praisonai:*:*:*:*:*:*:*:*
4.5.128