{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-77321 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-77321 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-77321 is a medium-severity missing authorization vulnerability in mauriceboe TREK, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-77321 and fix it if it is affected.\n\nWhat it is: CVE-2026-77321 is a medium-severity missing authorization vulnerability in mauriceboe TREK, published on 24 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-77321 in the wild and no public exploit code.\n\nAffected product: mauriceboe TREK. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-77321/ (Markdown: https://insights.sbomify.com/CVE-2026-77321/index.md)","id":"CVE-2026-77321","markdown":"https://insights.sbomify.com/CVE-2026-77321/index.md","name":"CVE-2026-77321","record":{"aliases":["GHSA-qvw8-w937-vcmq"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"TREK travel planner","requires_auth":"low_privilege","summary":"An attacker with a limited OAuth token can access unauthorized trip details and member emails due to missing scope checks in the MCP tool.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":4.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"},{"id":"CWE-284","name":"Improper Access Control"},{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"description":"TREK is a collaborative travel planner. Prior to 3.3.0, the get_trip_summary tool in server/src/mcp/tools/trips.ts is registered for scoped OAuth MCP tokens without requiring trips:read and returns core trip summary data regardless of the delegated scopes. A token granted only an unrelated capability, such as weather:read, can receive trip metadata, member email addresses from server/src/services/tripService.ts, itinerary days, and accommodations for every trip accessible to the token's user. Cross-user trip authorization remains enforced, but the missing scope check defeats the consented least-privilege boundary and exposes trip content and third-party contact information to an MCP client that was not authorized to read it. This issue is fixed in version 3.3.0.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"TREK MCP trip summary bypasses delegated OAuth read scopes","id":"CVE-2026-77321","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":4,"next":{"headline":"SIPGO: DoS via unvalidated WebSocket frame length","id":"CVE-2026-77322"},"packages":[],"prev":{"headline":"Missing authorization in TREK","id":"CVE-2026-77320"},"products":["TREK"],"published":"2026-09-24","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-10-05","vendors":["mauriceboe"]},"summary":"An attacker with a limited OAuth token can access unauthorized trip details and member emails due to missing scope checks in the MCP tool.","url":"https://insights.sbomify.com/CVE-2026-77321/"}