High 7.5Published Jul 11, 2026

CVE-2026-61439PraisonAI before 4.6.78 Prompt Injection Defense Bypass

Updated under an hour ago (Oct 27, 2026, 11:10 AM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for MervinPraison PraisonAI

Exploited in the last 30 days

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 injection attacks such as instruction overrides or financial manipulation that trigger HIGH severity detection but are logged without blocking, enabling system prompt extraction and unauthorized tool invocations.

CVSS: 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness (CWE): CWE-1188
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulnCheck
NVD analysis: Deferred
Record last updated: Jul 14, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

MervinPraison PraisonAI mervinpraison:praisonai (from the name)	before 4.6.78; 4.6.78 not affected	CNA record

References

References

https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-fj8f-m44g-c479	vendor-advisory
https://www.vulncheck.com/advisories/praisonai-before-prompt-injection-defense-bypass	third-party-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.