{"answers":{"affected":"","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82273 exists.","fix":"No fix has been published for CVE-2026-82273 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-82273 is a high-severity missing authorization vulnerability in mastra-ai mastra, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-82273 and fix it if it is affected.\n\nWhat it is: CVE-2026-82273 is a high-severity missing authorization vulnerability in mastra-ai mastra, published on 28 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82273 exists.\n\nAffected product: mastra-ai mastra. 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-2026-82273/ (Markdown: https://insights.sbomify.com/CVE-2026-82273/index.md)","id":"CVE-2026-82273","markdown":"https://insights.sbomify.com/CVE-2026-82273/index.md","name":"CVE-2026-82273","record":{"aliases":["GHSA-q48c-g8g8-2xq8"],"analysis":{"component_type":"library","fix_type":"configuration_change","impacts":["data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Mastra AI library","requires_auth":"low_privilege","summary":"Authenticated attackers can read other users' conversation history if the mapUserToResourceId callback is omitted from the Mastra memory API configuration.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","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","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Mastra through 1.63.0 contains an authentication bypass vulnerability in the memory API thread ownership validation when mapUserToResourceId callback is omitted from configuration. Authenticated attackers can enumerate all threads via GET /api/memory/threads and read conversation history and metadata of other resource owners.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":false,"headline":"Mastra Memory API Thread Ownership Check Is a No-op When mapUserToResourceId Is Unset","id":"CVE-2026-82273","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":"Twenty Open Redirect via OAuth Propagator Callback","id":"CVE-2026-82274"},"packages":[],"prev":{"headline":"Immich Locked Assets Remain Readable Through Albums and Shared Links","id":"CVE-2026-82272"},"products":["mastra"],"published":"2026-08-28","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["mastra-ai"]},"summary":"Authenticated attackers can read other users' conversation history if the mapUserToResourceId callback is omitted from the Mastra memory API configuration.","url":"https://insights.sbomify.com/CVE-2026-82273/"}