{"answers":{"affected":"1 open source package ship an affected version, including ash.","exploited":"There is no known exploitation of CVE-2026-96581 in the wild and no public exploit code.","fix":"Upgrade ash to 3.37.2 or later.","what":"CVE-2026-96581 is a high-severity vulnerability in ash-project ash, published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-96581 and fix it if it is affected.\n\nWhat it is: CVE-2026-96581 is a high-severity vulnerability in ash-project ash, published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-96581 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- ash (Hex): affected from 1.22.0; fixed in 3.37.2\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-2026-96581/ (Markdown: https://insights.sbomify.com/CVE-2026-96581/index.md)","id":"CVE-2026-96581","markdown":"https://insights.sbomify.com/CVE-2026-96581/index.md","name":"CVE-2026-96581","record":{"aliases":["EEF-CVE-2026-96581","GHSA-vw7c-67pf-gh96"],"analysis":null,"analysis_generated_by":null,"assigner":"EEF","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash allows a user of one tenant to read, overwrite and take over another tenant's records via an upserting create action.\n\nUnder attribute multitenancy, Ash.Actions.Create (lib/ash/actions/create/create.ex) and Ash.Actions.Create.Bulk (lib/ash/actions/create/bulk.ex) upserted on the primary key, or on an all_tenants? identity, without scoping the conflicting record to the request's tenant. A caller of a create action with upsert? true that accepts the primary key, supplying a record id from another tenant, updated that record's upsert fields and received all of its attributes in the result. With the default upsert fields the tenant attribute was written too, moving the record into the caller's tenant. Read and update policies do not run for upserts, and tenant-scoped create policies pass because the tenant is the caller's own.\n\nThis issue affects ash: from 1.22.0 before 3.37.2.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Authorization Bypass Through User-Controlled Key vulnerability in ash-project ash allows a user of one tenant to read, overwrite and take ov","id":"CVE-2026-96581","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":null,"year":"2026"},"n_packages":1,"n_references":5,"next":{"headline":"Out-of-bounds Read via Check-after-use in the USBX HID Report Descriptor Parser","id":"CVE-2026-96582"},"packages":[{"ecosystem":"Hex","fixed":["3.37.2"],"introduced":["1.22.0"],"last_affected":[],"package":"ash","purl":"pkg:hex/ash","source":"EEF-CVE-2026-96581"}],"prev":{"headline":"Gitea Actions memory exhaustion through large static matrices","id":"CVE-2026-96580"},"products":["ash"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"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":"total"},"state":"PUBLISHED","updated":"2026-10-26","vendors":["ash-project"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-96581/"}