{"answers":{"affected":"3 open source packages ship an affected version, including github.com/enchant97/note-mark/backend.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40265 exists.","fix":"Upgrade github.com/enchant97/note-mark/backend to 0.0.0-20260411145023-6593898855ad or later.","what":"CVE-2026-40265 is a medium-severity missing authorization vulnerability in enchant97 note-mark, published on 16 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-40265 and fix it if it is affected.\n\nWhat it is: CVE-2026-40265 is a medium-severity missing authorization vulnerability in enchant97 note-mark, published on 16 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-40265 exists.\n\nAffected packages and fixed versions:\n- github.com/enchant97/note-mark/backend (Go): affected all versions; fixed in 0.0.0-20260411145023-6593898855ad\n- github.com/enchant97/note-mark/backend (Go): affected all versions; fixed in 0.0.0-20260411145023-6593898855ad\n- github.com/enchant97/note-mark/backend (Go): affected all versions; fixed in 0.0.0-20260411145023-6593898855ad\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-2026-40265/ (Markdown: https://insights.sbomify.com/CVE-2026-40265/index.md)","id":"CVE-2026-40265","markdown":"https://insights.sbomify.com/CVE-2026-40265/index.md","name":"CVE-2026-40265","record":{"aliases":["GHSA-p5w6-75f9-cc2p","GO-2026-5530"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Note Mark application","requires_auth":"none","summary":"Unauthenticated attackers can access private note assets by guessing IDs, exposing sensitive data in Note Mark applications.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":5.9,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"Note Mark is an open-source note-taking application. In versions 0.19.1 and prior, the asset download endpoint at /api/notes/{noteID}/assets/{assetID} is registered without authentication middleware, and the backend query does not verify ownership or book visibility. An unauthenticated user who knows a valid note ID and asset ID can retrieve the full contents of private note assets without authentication, regardless of whether the associated book is public or private. This issue has been fixed in version 0.19.2.","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":"Note Mark has Broken Access Control on Asset Download","id":"CVE-2026-40265","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"Vulnerability in the QNX libtraceparser Impacts QNX Software Development Platform","id":"CVE-2026-40272"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260411145023-6593898855ad"],"introduced":["0"],"last_affected":[],"package":"github.com/enchant97/note-mark/backend","purl":null,"source":"GHSA-p5w6-75f9-cc2p"},{"ecosystem":"Go","fixed":["0.0.0-20260411145023-6593898855ad"],"introduced":["0"],"last_affected":[],"package":"github.com/enchant97/note-mark/backend","purl":"pkg:golang/github.com/enchant97/note-mark/backend","source":"GHSA-p5w6-75f9-cc2p"},{"ecosystem":"Go","fixed":["0.0.0-20260411145023-6593898855ad"],"introduced":["0"],"last_affected":[],"package":"github.com/enchant97/note-mark/backend","purl":"pkg:golang/github.com/enchant97/note-mark/backend","source":"GO-2026-5530"}],"prev":{"headline":"OpenBao's Token Store Allows Cross-Namespace Renewal, Revocation","id":"CVE-2026-40264"},"products":["note-mark"],"published":"2026-04-16","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":"2026-04-17","vendors":["enchant97"]},"summary":"Unauthenticated attackers can access private note assets by guessing IDs, exposing sensitive data in Note Mark applications.","url":"https://insights.sbomify.com/CVE-2026-40265/"}