What is CVE-2026-61439?

CVE-2026-61439 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Initialization of a Resource with an Insecure Default. CVSS score: 7.5/10. Published 2026-07-11.

How severe is CVE-2026-61439?

High severity. CVSS v3 base score is 7.5 out of 10.

RCE in Mervinpraison Praisonai

CVE-2026-61439

PraisonAI versions before 4.6.78 contain a prompt injection defense misconfiguration where the block threshold defaults to CRITICAL severity, allowing HIGH-level threats to pass through unblocked. Attackers can submit single-vector prompt…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

Affected products

Mervinpraison Praisonai — versions 0, 4.6.78

Weakness classification (CWE)

CWE-1188 — Initialization of a Resource with an Insecure Default

References

disclosure@vulncheck.com (vendor-advisory)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-61439?: CVE-2026-61439 is a high-severity vulnerability in Mervinpraison Praisonai, classified under Initialization of a Resource with an Insecure Default. CVSS score: 7.5/10. Published 2026-07-11.
How severe is CVE-2026-61439?: High severity. CVSS v3 base score is 7.5 out of 10.