{"items":[{"id":"NVI-00014162","kind":"vulnerability","title":"PraisonAI: Origin-validation bypass (startswith prefix match) enables unauthenticated cross-site request forgery against the PraisonAI MCP HTTP server","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pvph-5j39-v8qc","CVE-2026-55532"],"plain_summary":"GitHub lists this reviewed advisory for PraisonAI. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-049ed3e59e89055fd7c3c06c29684ad6"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-25T15:18:21.000Z","value":"7.6 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-53285961ca20656ccdce32a8704b3114"},{"kind":"EPSS","as_of":"2026-11-03T12:00:27.000Z","value":"0.197%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.09531. Missing scores are unknown.","source_id":"sr-049ed3e59e89055fd7c3c06c29684ad6"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-53285961ca20656ccdce32a8704b3114","url":"https://github.com/advisories/GHSA-pvph-5j39-v8qc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pvph-5j39-v8qc","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"},{"id":"sr-049ed3e59e89055fd7c3c06c29684ad6","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-55532","publisher":"FIRST EPSS","observed_at":"2026-11-03T17:44:07.788Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-53285961ca20656ccdce32a8704b3114"],"technology":"PraisonAI","known_exclusions":[],"conditions_summary":"### Summary\n\nThe PraisonAI MCP server exposes an HTTP-stream transport (praisonai mcp serve --transport http-stream) that binds to localhost and, by default, has no API key. Its only access control for browser-originated requests is an Origin allowlist, which the code implements as required by the MCP 2025-11-25 security guidance. The allowlist check uses a prefix match (request_origin.startswith(allowed)), so any Origin whose string begins with http://localhost or http://127.0.0.1 is accepted, for example http://localhost.attacker.com. An attacker who registers such a hostname and serves a page from it can, when a victim visits the page, issue cross-site requests that the MCP server accepts and executes without authentication. Because the request can be sent as a CORS \"simple request\" (Content-Type: text/plain, which the server still parses as JSON), it requires no preflight, and because tools/call does not require a session, a single forged request executes an MCP tool. This is a blind cross-site request forgery against a developer's local agent runtime. A natural end-to-end impact is persistent prompt injection: the forged request creates a rule file that the agent runtime loads","public_affected_ranges":["< 4.6.58"]}],"null_published_at":"2026-11-04T10:04:41.544Z","source_updated_at":"2026-08-25T15:18:21.000Z","source_disclosed_at":"2026-08-25T15:18:20.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-02T09:56:37.775Z"},{"id":"NVI-00014162","kind":"vulnerability","title":"PraisonAI: Origin-validation bypass (startswith prefix match) enables unauthenticated cross-site request forgery against the PraisonAI MCP HTTP server","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-pvph-5j39-v8qc","CVE-2026-55532"],"plain_summary":"GitHub lists this reviewed advisory for PraisonAI. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-53285961ca20656ccdce32a8704b3114"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-08-25T15:18:21.000Z","value":"7.6 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-53285961ca20656ccdce32a8704b3114"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-53285961ca20656ccdce32a8704b3114","url":"https://github.com/advisories/GHSA-pvph-5j39-v8qc","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-pvph-5j39-v8qc","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-53285961ca20656ccdce32a8704b3114"],"technology":"PraisonAI","known_exclusions":[],"conditions_summary":"### Summary\n\nThe PraisonAI MCP server exposes an HTTP-stream transport (praisonai mcp serve --transport http-stream) that binds to localhost and, by default, has no API key. Its only access control for browser-originated requests is an Origin allowlist, which the code implements as required by the MCP 2025-11-25 security guidance. The allowlist check uses a prefix match (request_origin.startswith(allowed)), so any Origin whose string begins with http://localhost or http://127.0.0.1 is accepted, for example http://localhost.attacker.com. An attacker who registers such a hostname and serves a page from it can, when a victim visits the page, issue cross-site requests that the MCP server accepts and executes without authentication. Because the request can be sent as a CORS \"simple request\" (Content-Type: text/plain, which the server still parses as JSON), it requires no preflight, and because tools/call does not require a session, a single forged request executes an MCP tool. This is a blind cross-site request forgery against a developer's local agent runtime. A natural end-to-end impact is persistent prompt injection: the forged request creates a rule file that the agent runtime loads","public_affected_ranges":["< 4.6.58"]}],"null_published_at":"2026-11-02T10:00:37.216Z","source_updated_at":"2026-08-25T15:18:21.000Z","source_disclosed_at":"2026-08-25T15:18:20.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T09:56:37.775Z"}],"next_cursor":null,"snapshot_revision":"42594"}