CVE-2026-56832highCWE-345CWE-863

CVE-2026-56832: high-severity vulnerability in MervinPraison PraisonAI

PraisonAI DiscordApproval accepts unrelated channel messages as dangerous-tool approvals

Published · Updated

Follow this CVE+ Monitor PraisonAI+ Monitor praisonai

E-mail alert when it lands in KEV, gets a public PoC or its score goes up.

21Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 8.8epss 0.1%
PraisonAI is a multi-agent teams system. From version 4.5.2 to before version 4.6.59, praisonai.bots.DiscordApproval approves a pending dangerous tool call when it sees any later non-bot message in the configured Discord channel whose text is classified as approval, such as yes. As a result, any user who can post in the configured approval channel can approve a pending high-risk tool call by sending yes after the approval message appears. the same PoV also shows that the Slack and Telegram messaging approval backends have no explicit approver allowlist parameter, but the primary report-grade issue is the Discord backend's unthreaded channel cross-talk: the approving message does not need to be a reply or otherwise request-bound. This issue has been patched in version 4.6.59.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
MervinPraison · PraisonAI
Related CVEs — MervinPraison PraisonAI

In the same product, most dangerous first.

CVE-2026-44338HIGHPraisonAI ships and generates a legacy API server with authentication disabled by default, allowing unauthenticated workflow executionEPSS 32.6%CVE-2026-61447CRITICALPraisonAI before 1.6.78 Remote Code Execution via CodeAgentEPSS 15.2%CVE-2026-34938CRITICALPraisonAI: Python Sandbox Escape via str Subclass startswith() Override in execute_codeEPSS 13.4%CVE-2026-48168CRITICALPraisonAI: GitHub Actions Claude workflow command injection via unquoted PR branch nameEPSS 1.5%CVE-2026-47391CRITICALPraisonAI's unauthenticated A2A official example can reach real LLM-driven `eval()` tool executionEPSS 1.5%CVE-2026-57124CRITICALPraisonAI UI MCP connect endpoint allows unauthenticated local command executionEPSS 1.0%