{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-34584 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-34584 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-34584 is a medium-severity missing authorization vulnerability in knadh listmonk, published on 2 Apr 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-34584 and fix it if it is affected.\n\nWhat it is: CVE-2026-34584 is a medium-severity missing authorization vulnerability in knadh listmonk, published on 2 Apr 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-2026-34584 in the wild and no public exploit code.\n\nAffected product: knadh listmonk. 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-2026-34584/ (Markdown: https://insights.sbomify.com/CVE-2026-34584/index.md)","id":"CVE-2026-34584","markdown":"https://insights.sbomify.com/CVE-2026-34584/index.md","name":"CVE-2026-34584","record":{"aliases":["GHSA-85j8-5c6w-gcpv"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read","data_modify"],"network_reachable":"yes","non_default_config":true,"product_category":"Newsletter manager","requires_auth":"low_privilege","summary":"Unauthorized users can access and modify mailing lists they lack permissions for in multi-user environments.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"listmonk","vendor":"nadh"}],"cvss":{"score":5.4,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"cwes":[{"id":"CWE-639","name":"Authorization Bypass Through User-Controlled Key"}],"description":"listmonk is a standalone, self-hosted, newsletter and mailing list manager. From version 4.1.0 to before version 6.1.0, bugs in list permission checks allows users in a multi-user environment to access to lists (which they don't have access to) under different scenarios. This only affects multi-user environments with untrusted users. This issue has been patched in version 6.1.0.","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":"listmonk: Broken Access Control in CSV Import (Unauthorized List Assignment)","id":"CVE-2026-34584","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"SiYuan: Stored XSS in imported .sy.zip content leads to arbitrary command execution","id":"CVE-2026-34585"},"packages":[],"prev":{"headline":"Botan has a TLS 1.3 certificate authentication bypass","id":"CVE-2026-34582"},"products":["listmonk"],"published":"2026-04-02","related":[{"cvss_score":9.1,"headline":"listmonk's Sprig template Injection vulnerability leads to reading of Environment Variable for low privilege user","id":"CVE-2025-49136","kev_date_added":null,"published":"2025-06-09"},{"cvss_score":8.6,"headline":"listmonk Vulnerable to CSRF to XSS Chain That Can Lead to Admin Account Takeover","id":"CVE-2025-58430","kev_date_added":null,"published":"2025-09-09"},{"cvss_score":7.1,"headline":"listmonk: Active sessions remain valid after password reset and password change","id":"CVE-2026-34828","kev_date_added":null,"published":"2026-04-02"},{"cvss_score":6.5,"headline":"SQL injection in n/a","id":"CVE-2025-46011","kev_date_added":null,"published":"2025-06-04"},{"cvss_score":5.4,"headline":"listmonk Vulnerable to Stored XSS Leading to Admin Account Takeover","id":"CVE-2026-21483","kev_date_added":null,"published":"2026-01-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"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":"2026-04-02","vendors":["knadh"]},"summary":"Unauthorized users can access and modify mailing lists they lack permissions for in multi-user environments.","url":"https://insights.sbomify.com/CVE-2026-34584/"}