Is CVE-2026-39891 actively exploited?

No active exploitation of CVE-2026-39891 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39891 be exploited remotely?

Yes. CVE-2026-39891 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39891?

CVE-2026-39891 has a CVSS score of 8.8 (HIGH).

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HIGH

CVE-2026-39891

CWE-94Published: April 8, 2026· Updated: Apr 9, 2026

8.8

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.7th

Official Description

PraisonAI is a multi-agent teams system. Prior to 4.5.115, the create_agent_centric_tools() function returns tools (like acp_create_file) that process file content using template rendering. When user input from agent.start() is passed directly into these tools without escaping, template expressions in the input are executed rather than treated as literal text. This vulnerability is fixed in 4.5.115.

NVD Source

Technical Analysis

CVE-2026-39891 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.8.