CVE-2026-40148 — PraisonAI Affected by Decompression Bomb DoS via Recipe Bundle Extraction Without Size Limits

Description (CNA)

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.

Affected (CNA)

Vendor / product	Versions
MervinPraison / PraisonAI	affected < 4.5.128

CWE

CWE-409

References

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

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.