{"id":"GHSA-gp65-m7q3-4vjw","title":"Duplicate Advisory: PraisonAI: Call API localhost-only authentication bypass via spoofed Host header","summary":"Duplicate Advisory: PraisonAI: Call API localhost-only authentication bypass via spoofed Host header","severity":"high","cvss":8.2,"cwe":["CWE-287"],"vendor":"praisonai","product":"praisonai","ecosystem":"pip","affected":["praisonai <= 4.6.77"],"published":"2026-07-15","updated":"2026-10-08","sourceUpdated":"2026-10-08T19:36:15Z","source":"GHSA","sourceUrl":"https://github.com/advisories/GHSA-gp65-m7q3-4vjw","references":[{"url":"https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-2gpf-2492-q9jh"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-61435"},{"url":"https://github.com/MervinPraison/PraisonAI/commit/2a855c470077c7d2e2479a575f7ef7f548d51c33"},{"url":"https://github.com/MervinPraison/PraisonAI/commit/846568c7a5d8ce9e71e56e4c213f027c04909753"},{"url":"https://www.vulncheck.com/advisories/praisonai-before-authentication-bypass-via-host-header-spoofing"},{"url":"https://github.com/advisories/GHSA-gp65-m7q3-4vjw"}],"tags":["ghsa","pip"],"ingestedAt":"2026-10-08T20:06:22.195Z","slug":"GHSA-gp65-m7q3-4vjw","body":"## Overview\n\n### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-2gpf-2492-q9jh. This link is maintained to preserve external references.\n\n### Original Description\nPraisonAI 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.\n\n## Affected packages\n\n- `praisonai <= 4.6.77`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":45.1,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}