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Wednesday, 28 October 2026
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Incident database

CVE-2026-55529: PraisonAI Origin Validation Bypass

PraisonAI versions prior to 4.6.58 contain an origin validation bypass in the MCP HTTP Stream _validate_origin method that allows attackers to submit tool execution requests to local MCP servers without API key authentication through malicious webpages.

Disclosed 25 August 2026 · Record updated 1 October 2026

Impact

Attackers could execute exposed tools on local MCP servers without authentication by exploiting the origin validation bypass.

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Sources

  1. nvd.nist.govhttps://nvd.nist.gov/vuln/detail/CVE-2026-55529