EUVD-2026-21168
GHSA-4wr3-f4p3-5wjh
Severity by source
AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
Lifecycle Timeline
5DescriptionGitHub Advisory
PraisonAI is a multi-agent teams system. Prior to 4.5.128, the gateway's /api/approval/allow-list endpoint permits unauthenticated modification of the tool approval allowlist when no auth_token is configured (the default). By adding dangerous tool names (e.g., shell_exec, file_write) to the allowlist, an attacker can cause the ExecApprovalManager to auto-approve all future agent invocations of those tools, bypassing the human-in-the-loop safety mechanism that the approval system is specifically designed to enforce. This vulnerability is fixed in 4.5.128.
AnalysisAI
Unauthenticated modification of the tool approval allowlist in PraisonAI multi-agent system (versions prior to 4.5.128) enables attackers to bypass human-in-the-loop safety controls by injecting dangerous tool names (shell_exec, file_write) into the allowlist via the /api/approval/allow-list gateway endpoint. The ExecApprovalManager then auto-approves agent invocations of these tools, circumventing the approval mechanism's core security function. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | PraisonAI versions prior to 4.5.128 with default configuration (no auth_token configured). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Local unauthenticated access to gateway endpoint permits direct allowlist manipulation, bypassing safety controls for dangerous tool execution. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Attacker with local access sends unauthenticated POST to /api/approval/allow-list, adding 'shell_exec' to allowlist. Subsequent agent requests for shell execution auto-approve without human review, enabling arbitrary command execution. … |
| Remediation | Vendor-released patch: upgrade to PraisonAI version 4.5.128 or later, which enforces authentication requirements on the /api/approval/allow-list endpoint. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all PraisonAI deployments and confirm installed versions; isolate any instances running versions prior to 4.5.128 from untrusted local access. …
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