CVE-2026-34939mediumCWE-1333

CVE-2026-34939: falha de média gravidade em MervinPraison PraisonAI

PraisonAI: ReDoS via Unvalidated User-Controlled Regex in MCPToolIndex.search_tools()

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13Vexday Risk Score

Sem sinal de exploração. Nenhum artefato público de exploração conhecido até agora.

ssvc Trackcvss 6.5epss 0.4%
PraisonAI is a multi-agent teams system. Prior to version 4.5.90, MCPToolIndex.search_tools() compiles a caller-supplied string directly as a Python regular expression with no validation, sanitization, or timeout. A crafted regex causes catastrophic backtracking in the re engine, blocking the Python thread for hundreds of seconds and causing a complete service outage. This issue has been patched in version 4.5.90.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
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MervinPraison · PraisonAI
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