What is CVE-2026-40153?

CVE-2026-40153 is a high-severity vulnerability in Mervinpraison Praisonaiagents, classified under CWE-526. CVSS score: 7.4/10. Published 2026-04-09.

How severe is CVE-2026-40153?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Mervinpraison Praisonaiagents

CVE-2026-40153

PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, the execute_command function in shell_tools.py calls os.path.expandvars() on every command argument at line 64, manually re-implementing shell-level environment variable expa…

EPSS: 0.000 (15.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Mervinpraison Praisonaiagents — versions < 1.5.128

Weakness classification (CWE)

CWE-526

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-v8g7-9q6v-p3x8 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-40153?: CVE-2026-40153 is a high-severity vulnerability in Mervinpraison Praisonaiagents, classified under CWE-526. CVSS score: 7.4/10. Published 2026-04-09.
How severe is CVE-2026-40153?: High severity. CVSS v3 base score is 7.4 out of 10.