Is CVE-2026-39419 actively exploited?

No active exploitation of CVE-2026-39419 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-39419 be exploited remotely?

Yes. CVE-2026-39419 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-39419?

CVE-2026-39419 has a CVSS score of 3.1 (LOW).

HOME VULNERABILITIESCVE-2026-39419

LOW

CVE-2026-39419

CWE-74Published: April 14, 2026· Updated: Apr 20, 2026

3.1

CVSS v3.1

EPSS:0.05%probability of exploitation in 30 daysPercentile:14.3th

Official Description

MaxKB is an open-source AI assistant for enterprise. In versions 2.7.1 and below, an authenticated user can bypass sandbox result validation and spoof tool execution results by exploiting Python frame introspection to read the wrapper's UUID from its bytecode constants, then writing a forged result directly to file descriptor 1 (bypassing stdout redirection). By calling sys.exit(0), the attacker terminates the wrapper before it prints the legitimate output, causing the MaxKB service to parse and trust the spoofed response as the genuine tool result. This issue has been fixed in version 2.8.0.

NVD Source

Technical Analysis

CVE-2026-39419 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.