{"answers":{"affected":"1 open source package ship an affected version, including ash.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82741 exists.","fix":"Upgrade ash to 3.32.2 or later.","what":"CVE-2026-82741 is a low-severity vulnerability in ash-project ash, published on 1 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-82741 and fix it if it is affected.\n\nWhat it is: CVE-2026-82741 is a low-severity vulnerability in ash-project ash, published on 1 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-82741 exists.\n\nAffected packages and fixed versions:\n- ash (Hex): affected from 2.14.18; fixed in 3.32.2\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-2026-82741/ (Markdown: https://insights.sbomify.com/CVE-2026-82741/index.md)","id":"CVE-2026-82741","markdown":"https://insights.sbomify.com/CVE-2026-82741/index.md","name":"CVE-2026-82741","record":{"aliases":["EEF-CVE-2026-82741","GHSA-2mmm-gc86-7jgg"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["security_bypass","data_modify"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Elixir Ash framework","requires_auth":"none","summary":"Attackers can bypass validation and authorization in Ash.Type.Union by manipulating storage tags, requiring an upgrade to the Ash library.","user_interaction":"not_required","vuln_class":"business_logic"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[],"cvss":{"score":2.1,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-1287","name":"Improper Validation of Specified Type of Input"}],"description":"Improper Validation of Specified Type of Input vulnerability in ash-project ash lets an attacker confuse the stored type tag of an Ash.Type.Union value that uses storage: :map_with_tag, bypassing that member's validation and any tag-based authorization.\n\nFor a union with storage: :map_with_tag, each member is identified in storage by a configured tag and tag_value. Ash.Type.Union.dump_to_native/2 (lib/ash/type/union.ex) did not force the configured tag when writing the value, so a tag carried in the submitted value was persisted verbatim. An attacker can therefore store a value whose data belongs to one member but whose tag names a different member. On read the value is re-selected by its tag and treated as the incompatible member (a type confusion), bypassing the real member's constraints and any logic or policy that branches on the union tag. The fix drops any incoming tag and forces the configured tag value on dump.\n\nThis issue affects ash: from 2.14.18 before 3.32.2.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Ash.Type.Union with :map_with_tag does not force the tag on dump, enabling tag confusion","id":"CVE-2026-82741","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"business_logic","year":"2026"},"n_packages":1,"n_references":4,"next":{"headline":"Ash.Filter.Runtime materializes a combinatorial cross-product over to-many relationships, exhausting memory","id":"CVE-2026-82742"},"packages":[{"ecosystem":"Hex","fixed":["3.32.2"],"introduced":["2.14.18"],"last_affected":[],"package":"ash","purl":"pkg:hex/ash","source":"EEF-CVE-2026-82741"}],"prev":{"headline":"Ash.Type ignores outer array constraints on nested {:array, {:array, type}} inputs","id":"CVE-2026-82740"},"products":["ash"],"published":"2026-09-01","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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-01","vendors":["ash-project"]},"summary":"Attackers can bypass validation and authorization in Ash.Type.Union by manipulating storage tags, requiring an upgrade to the Ash library.","url":"https://insights.sbomify.com/CVE-2026-82741/"}