CVE-2026-61435

PraisonAI before 4.6.78 contains an authentication bypass in the Call API agent invocation endpoints (src/praisonai/praisonai/api/agent_invoke.py) when PRAISONAI_CALL_AUTH=disabled is configured. The safeguard intended to restrict the disabled-auth opt-out to localhost binding derives the bind host from request.url.hostname, which is taken from the client-controlled HTTP Host header. A remote, unauthenticated attacker who can reach the service over the network can send a spoofed 'Host: 127.0.0.1' header to bypass the localhost-only restriction and list (GET /api/v1/agents) and invoke (POST /api/v1/agents/{agent_id}/invoke) registered agents without authentication.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33
https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2gpf-2492-q9jh
https://www.vulncheck.com/advisories/praisonai-before-authentication-bypass-via-host-header-spoofing
https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2gpf-2492-q9jh

Configurations

No configuration.

History

No history.

Information

Published : 2026-07-15 12:18

Updated : 2026-07-15 19:50

NVD link : CVE-2026-61435

Mitre link : CVE-2026-61435

CVE.ORG link : CVE-2026-61435

JSON object : View

Products Affected

No product.

CWE

CWE-287

Improper Authentication

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