{"answers":{"affected":"3 open source packages ship an affected version, including github.com/usememos/memos.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-6634 exists.","fix":"No fix published yet.","what":"CVE-2026-6634 is a medium-severity missing authorization vulnerability in usememos memos, published on 20 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-2026-6634 and fix it if it is affected.\n\nWhat it is: CVE-2026-6634 is a medium-severity missing authorization vulnerability in usememos memos, published on 20 Apr 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-2026-6634 exists.\n\nAffected packages and fixed versions:\n- github.com/usememos/memos (Go): affected all versions; no fix listed\n- github.com/usememos/memos (Go): affected all versions up to 0.22.1; no fix listed\n- github.com/usememos/memos (Go): affected all versions up to 0.22.1; no fix listed\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-2026-6634/ (Markdown: https://insights.sbomify.com/CVE-2026-6634/index.md)","id":"CVE-2026-6634","markdown":"https://insights.sbomify.com/CVE-2026-6634/index.md","name":"CVE-2026-6634","record":{"aliases":["GHSA-gqp3-hfc3-8q54","GO-2026-5403"],"analysis":{"component_type":"web_application","fix_type":"no_fix_stated","impacts":["privilege_escalation","code_execution"],"network_reachable":"yes","non_default_config":false,"product_category":"usememos web app","requires_auth":"low_privilege","summary":"Remote attackers can bypass authorization in usememos to modify instance settings, potentially leading to privilege escalation or code execution.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulDB","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},"cwes":[{"id":"CWE-285","name":"Improper Authorization"},{"id":"CWE-266","name":"Incorrect Privilege Assignment"}],"description":"A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"usememos UpdateInstanceSetting App.tsx memos_access_token improper authorization","id":"CVE-2026-6634","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":4,"next":{"headline":"rowboatlabs rowboat tools_webhook app.py tool_call improper authentication","id":"CVE-2026-6635"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/usememos/memos","purl":"pkg:golang/github.com/usememos/memos","source":"GO-2026-5403"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.22.1"],"package":"github.com/usememos/memos","purl":null,"source":"GHSA-gqp3-hfc3-8q54"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["0.22.1"],"package":"github.com/usememos/memos","purl":"pkg:golang/github.com/usememos/memos","source":"GHSA-gqp3-hfc3-8q54"}],"prev":{"headline":"Yifang CMS Extended Management L_rbac_admin.php store cross site scripting","id":"CVE-2026-6633"},"products":["memos"],"published":"2026-04-20","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":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"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":"2026-04-20","vendors":["usememos"]},"summary":"Remote attackers can bypass authorization in usememos to modify instance settings, potentially leading to privilege escalation or code execution.","url":"https://insights.sbomify.com/CVE-2026-6634/"}