CVE-2026-40148

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.

CVSS 3.1

6.5CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 15% of CVEs (scores of 2026-10-26)

CWE

CWE-409

Published

2026-04-09

Modified

2026-10-26

Record from

the NVD, synced 2026-10-26

Affected

• praison:praisonai

Packages (OSV)

References

• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-f2h6-7xfr-xm8w

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