What’s Vulnerable › Vulnerabilities

CVE-2026-57134: PraisonAI MCPSecurity Basic/OAuth authentication policies accept invalid credentials without validation

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-15 · updated 2026-09-15
• Weakness: CWE-287

Description

PraisonAI is a multi-agent teams system. From 1.5.1 until 1.7.2, MCPSecurity.evaluatePolicy() in src/praisonai-ts/src/mcp/security.ts invokes the configured credential validator only when AuthMethod is api-key or bearer. Basic and OAuth policies accept any non-empty Authorization header without calling auth.validate(), then return an authenticated result, allowing callers with invalid credentials to access MCP tools and resources protected by those policies. This issue is fixed in version 1.7.2.

Affected products

• MervinPraison PraisonAI: from 1.5.1, < 1.7.2

References

• https://github.com/MervinPraison/PraisonAI/commit/709a0387853709a5e2f2c34680fa64cada252c27
• https://github.com/MervinPraison/PraisonAI/releases/tag/v4.6.60
• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4qq2-2j2x-x62c
• https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-4qq2-2j2x-x62c

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