What is CVE-2026-40148?

CVE-2026-40148 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 6.5/10. Published 2026-04-09.

How severe is CVE-2026-40148?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Vulnerability in Mervinpraison Praisonai

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, cumulativ…

EPSS: 0.001 (17.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Mervinpraison Praisonai — versions < 4.5.128

Weakness classification (CWE)

CWE-409 — Improper Handling of Highly Compressed Data (Data Amplification)

References

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

Frequently asked questions

What is CVE-2026-40148?: CVE-2026-40148 is a medium-severity vulnerability in Mervinpraison Praisonai, classified under Improper Handling of Highly Compressed Data (Data Amplification). CVSS score: 6.5/10. Published 2026-04-09.
How severe is CVE-2026-40148?: Medium severity. CVSS v3 base score is 6.5 out of 10.