{"id":"CVE-2026-57494","revision":null,"records":[{"revision":"2935f3fbbc7d40578968477057fae69b","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-57494","aliases":[],"title":"AgenticMail: Cross-agent task authorization bypass in AgenticMail API","description":"AgenticMail gives AI agents real email addresses and phone numbers. In @agenticmail/api prior to version 0.9.64, a low-privileged authenticated AgenticMail agent can enumerate another agent's pending/claimed tasks by supplying the target agent name to `GET /api/agenticmail/tasks/pending?assignee=<name>`. The returned task objects include the task IDs and payloads. The same task IDs can then be used with the capability-style task mutation endpoints (`/tasks/:id/claim`, `/tasks/:id/result`, `/tasks/:id/complete`, `/tasks/:id/fail`) to claim, complete, or fail tasks assigned to a different agent. Because ordinary authenticated agents can discover agent names through `GET /api/agenticmail/accounts/directory`, the task ID effectively stops being a secret capability. This turns the intended capability model into a cross-agent authorization bypass. Version 0.9.64 contains a fix.","state":0,"publishedAt":"2026-07-20T22:01:43.891+00:00","modifiedAt":"2026-07-21T14:56:03.184+00:00","affected":[{"ecosystem":"Vendor product","name":"@agenticmail/api","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"agenticmail\",\n                    \"product\": \"@agenticmail/api\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 0.9.64\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":7.1,"severity":"HIGH"}],"references":["https://github.com/agenticmail/agenticmail/security/advisories/GHSA-hjwc-26pj-v3pm"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57494","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-57494","identifiers":["CVE-2026-57494"]},"retained":false,"historicalAffected":[]},{"revision":"76d785cca34643bfbdc6dd3d41808272","observedAt":"2026-10-25T14:19:16.843+00:00","statement":{"source":"nvd","id":"CVE-2026-57494","aliases":[],"title":"AgenticMail gives AI agents real email addresses and phone numbers. In @agenticmail/api prior to version 0.9.64, a low-privileged authenticated AgenticMail agent can enumerate another agent's pending/claimed tasks by supplying the target ag…","description":"AgenticMail gives AI agents real email addresses and phone numbers. In @agenticmail/api prior to version 0.9.64, a low-privileged authenticated AgenticMail agent can enumerate another agent's pending/claimed tasks by supplying the target agent name to `GET /api/agenticmail/tasks/pending?assignee=<name>`. The returned task objects include the task IDs and payloads. The same task IDs can then be used with the capability-style task mutation endpoints (`/tasks/:id/claim`, `/tasks/:id/result`, `/tasks/:id/complete`, `/tasks/:id/fail`) to claim, complete, or fail tasks assigned to a different agent. Because ordinary authenticated agents can discover agent names through `GET /api/agenticmail/accounts/directory`, the task ID effectively stops being a secret capability. This turns the intended capability model into a cross-agent authorization bypass. Version 0.9.64 contains a fix.","state":0,"publishedAt":"2026-07-20T22:17:16.97+00:00","modifiedAt":"2026-10-24T20:10:00.137+00:00","affected":[],"metrics":[{"system":"CVSS 4.0 · security-advisories@github.com · Secondary","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","score":7.1,"severity":"HIGH"}],"references":["https://github.com/agenticmail/agenticmail/security/advisories/GHSA-hjwc-26pj-v3pm"],"sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-57494","license":"NIST NVD usage terms; underlying source attribution retained","enrichment":{"sourceStatus":"Deferred","weaknesses":["CWE-639","CWE-862"],"productCriteria":[],"sourceDates":{"published":"2026-07-20T22:17:16.970","lastModified":"2026-10-24T20:10:00.137"},"relatedAdvisories":[],"note":"NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON."},"key":"nvd:CVE-2026-57494","identifiers":["CVE-2026-57494"]},"retained":false,"historicalAffected":[]},{"revision":"17485379e3ba4e50b04eade367faeba9","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-hjwc-26pj-v3pm","aliases":["CVE-2026-57494"],"title":"AgenticMail: Cross-agent task authorization bypass in AgenticMail API","description":"## Summary\n\nA low-privileged authenticated AgenticMail agent can enumerate another agent's pending/claimed tasks by supplying the target agent name to `GET /api/agenticmail/tasks/pending?assignee=<name>`. The returned task objects include the task IDs and payloads. The same task IDs can then be used with the capability-style task mutation endpoints (`/tasks/:id/claim`, `/tasks/:id/result`, `/tasks/:id/complete`, `/tasks/:id/fail`) to claim, complete, or fail tasks assigned to a different agent.\n\nBecause ordinary authenticated agents can discover agent names through `GET /api/agenticmail/accounts/directory`, the task ID effectively stops being a secret capability. This turns the intended capability model into a cross-agent authorization bypass.\n\n## Affected component\n\nPackage: `@agenticmail/api`\nObserved version: `0.9.62`\nRepository: `agenticmail/agenticmail`\n\nRelevant code paths:\n\n- `packages/api/src/app.ts`: `createAuthMiddleware(...)` is mounted before `createAccountRoutes(...)` and `createTaskRoutes(...)`, so these routes are reachable by any valid bearer token.\n- `packages/api/src/routes/accounts.ts`: `GET /accounts/directory` is available to any authenticated user and returns agent names.\n- `packages/api/src/routes/tasks.ts`: `GET /tasks/pending?assignee=name` resolves arbitrary agent names and returns that agent's pending/claimed tasks.\n- `packages/api/src/routes/tasks.ts`: `/tasks/:id/claim`, `/tasks/:id/result`, `/tasks/:id/complete`, `/tasks/:id/fail`, and `/tasks/:id` do not check whether the authenticated caller is the task assignee, assigner, or otherwise authorized for the task.\n\n## Impact\n\nAn attacker only needs a valid agent API key. They can:\n\n1. List agent names using `/accounts/directory`.\n2. Query another agent's task queue using `/tasks/pending?assignee=<victimName>`.\n3. Read sensitive task payloads intended for the victim agent.\n4. Use the disclosed task ID to complete/fail/claim the victim's task or submit attacker-controlled results.\n\n## Local reproduction\n\nI reproduced this locally with a focused Vitest test mounted directly on `createTaskRoutes`. The test creates two agents, Alice and Bob, and one pending task assigned to Bob. Alice authenticates with her own agent key and performs the following sequence:\n\n1. `GET /api/agenticmail/tasks/pending?assignee=Bob` with `Authorization: Bearer ak_alice`.\n2. The response is HTTP 200 and includes Bob's task ID and payload: `task-for-bob`, `{ \"task\": \"secret task intended for Bob\" }`.\n3. Alice then sends `POST /api/agenticmail/tasks/task-for-bob/complete` with her own bearer token and an attacker-controlled result.\n4. The task status becomes `completed` and the stored result is controlled by Alice.\n\nThe local verification command was:\n\n```bash\nnpm run test --workspace=@agenticmail/api -- task-routes-authz.test.ts\n```\n\nResult:\n\n```text\nPASS src/__tests__/task-routes-authz.test.ts (1 test)\n```\n\n## Expected behavior\n\nTask listing and task mutation endpoints should enforce an authorization relationship between the authenticated caller and the task. For example:\n\n- `GET /tasks/pending?assignee=<name>` should either be restricted to the current agent, master/admin callers, or an explicit delegated relationship.\n- `/tasks/:id/claim`, `/tasks/:id/result`, `/tasks/:id/complete`, `/tasks/:id/fail`, and `/tasks/:id` should verify that the caller is the assignee, assigner, master/admin, or otherwise explicitly authorized.\n- If capability-based task IDs are retained, the API should not expose those IDs to unrelated agents through the assignee-name listing path.\n\n## Credit\n\nPlease credit the finder as: Yaohui Wang","state":0,"publishedAt":"2026-06-18T17:20:55+00:00","modifiedAt":"2026-07-20T22:26:45.921845+00:00","affected":[{"ecosystem":"npm","name":"@agenticmail/api","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"0.9.64"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V4","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"references":["https://github.com/agenticmail/agenticmail/security/advisories/GHSA-hjwc-26pj-v3pm","https://github.com/agenticmail/agenticmail"],"sourceUrl":"https://github.com/advisories/GHSA-hjwc-26pj-v3pm","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-hjwc-26pj-v3pm","identifiers":["GHSA-hjwc-26pj-v3pm","CVE-2026-57494"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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