{"answers":{"affected":"2 open source packages ship an affected version, including nl.nl-portal:taak.","exploited":"There is no known exploitation of CVE-2026-49464 in the wild and no public exploit code.","fix":"Upgrade nl.nl-portal:taak to 3.0.1 or later.","what":"CVE-2026-49464 is a high-severity missing authorization vulnerability in nl-portal-backend-libraries, published on 11 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-2026-49464 and fix it if it is affected.\n\nWhat it is: CVE-2026-49464 is a high-severity missing authorization vulnerability in nl-portal-backend-libraries, published on 11 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-2026-49464 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- nl.nl-portal:taak (Maven): affected from 1.5.0; fixed in 3.0.1\n- nl.nl-portal:taak (Maven): affected from 1.5.0; fixed in 3.0.1\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-2026-49464/ (Markdown: https://insights.sbomify.com/CVE-2026-49464/index.md)","id":"CVE-2026-49464","markdown":"https://insights.sbomify.com/CVE-2026-49464/index.md","name":"CVE-2026-49464","record":{"aliases":["GHSA-6h3c-r723-7fx3"],"analysis":{"component_type":"library","fix_type":"patch","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"Dutch government portal library","requires_auth":"low_privilege","summary":"Authenticated users can read and modify other users' tasks due to missing ownership checks in the NL Portal backend library.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":8.1,"severity":"high","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"NL Portal Backend Libraries provide backend components for Dutch government portals that interact with residents, customers, suppliers, and partner organizations. The `nl.nl-portal:taak` package from version 1.5.0 through 3.0.0 fails to verify ownership when processing the `submitTaakV2` GraphQL mutation, allowing an authenticated user who knows or guesses another user’s task ID to read its form data, overwrite its submitted data, and mark the task as completed. Version 3.0.1 contains a patch. As a workaround, block the `submitTaakV2` mutation at the API gateway or restrict the `/graphql` endpoint to trusted networks","ecosystems":["Maven"],"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":"NL Portal: IDOR allows any authenticated user to complete and tamper with another user's taak","id":"CVE-2026-49464","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Maven","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":2,"n_references":1,"next":{"headline":"n8n: Git Node Clone and Push Operations Bypass File Sandbox","id":"CVE-2026-49465"},"packages":[{"ecosystem":"Maven","fixed":["3.0.1"],"introduced":["1.5.0"],"last_affected":[],"package":"nl.nl-portal:taak","purl":null,"source":"GHSA-6h3c-r723-7fx3"},{"ecosystem":"Maven","fixed":["3.0.1"],"introduced":["1.5.0"],"last_affected":[],"package":"nl.nl-portal:taak","purl":"pkg:maven/nl.nl-portal/taak","source":"GHSA-6h3c-r723-7fx3"}],"prev":{"headline":"NL Portal: Missing per-user authorization on document and decision GraphQL queries in nl-portal-backend-libraries","id":"CVE-2026-49463"},"products":["nl-portal-backend-libraries"],"published":"2026-09-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"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":"2026-09-15","vendors":["nl-portal"]},"summary":"Authenticated users can read and modify other users' tasks due to missing ownership checks in the NL Portal backend library.","url":"https://insights.sbomify.com/CVE-2026-49464/"}