Is CVE-2026-55532 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-55532?

CVE-2026-55532 has a CVSS v3 severity of HIGH (7.6).

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CVE-2026-55532

Description

PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, MCP HTTP Stream _validate_origin uses request_origin.startswith(allowed), allowing the attacker-controlled localhost.attacker.com HTTP origin to satisfy the localhost allowlist. A webpage can send Content-Type: text/plain requests without preflight and invoke tools/call without an API key, including file writes that persist agent instructions. This issue is fixed in version 4.6.58.