What is CVE-2026-40117?

CVE-2026-40117 is a medium-severity vulnerability in Mervinpraison Praisonaiagents, classified under Missing Authorization. CVSS score: 6.2/10. Published 2026-04-09.

How severe is CVE-2026-40117?

Medium severity. CVSS v3 base score is 6.2 out of 10.

Auth bypass in Mervinpraison Praisonaiagents

CVE-2026-40117

PraisonAIAgents is a multi-agent teams system. Prior to 1.5.128, read_skill_file() in skill_tools.py allows reading arbitrary files from the filesystem by accepting an unrestricted skill_path parameter. Unlike file_tools.read_file which enforces workspace boundary confinement, and unlike run_skill_script which requires critical-level approval, read_skill_file has neither protection. An agent influenced by prompt injection can exfiltrate sensitive files without triggering any approval prompt. This vulnerability is fixed in 1.5.128.

Vulnerability class: Broken Access Control

EPSS: 0.002 (14.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.2 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Mervinpraison Praisonaiagents — versions < 1.5.128
Praison Praisonaiagents

Weakness classification (CWE)

CWE-862 — Missing Authorization

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)

Frequently asked questions

What is CVE-2026-40117?: CVE-2026-40117 is a medium-severity vulnerability in Mervinpraison Praisonaiagents, classified under Missing Authorization. CVSS score: 6.2/10. Published 2026-04-09.
How severe is CVE-2026-40117?: Medium severity. CVSS v3 base score is 6.2 out of 10.