{"answers":{"affected":"3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-41894 exists.","fix":"Upgrade github.com/siyuan-note/siyuan/kernel to 3.6.5 or later.","what":"CVE-2026-41894 is a high-severity path traversal vulnerability in siyuan-note siyuan, published on 24 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-2026-41894 and fix it if it is affected.\n\nWhat it is: CVE-2026-41894 is a high-severity path traversal vulnerability in siyuan-note siyuan, published on 24 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-2026-41894 exists.\n\nAffected packages and fixed versions:\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; no fix listed\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 3.6.5\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 3.6.5\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-2026-41894/ (Markdown: https://insights.sbomify.com/CVE-2026-41894/index.md)","id":"CVE-2026-41894","markdown":"https://insights.sbomify.com/CVE-2026-41894/index.md","name":"CVE-2026-41894","record":{"aliases":["GHSA-hjh7-r5w8-5872","GO-2026-5429"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"SiYuan knowledge management","requires_auth":"low_privilege","summary":"An authenticated attacker can bypass path traversal protections via double URL encoding to read arbitrary workspace files, including the database and user documents.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":7.1,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-22","name":"Improper Limitation of a Pathname to a Restricted Directory"}],"description":"SiYuan is an open-source personal knowledge management system. Prior to 3.6.5, the fix for CVE-2026-30869 only added a denylist check (IsSensitivePath) but did not address the root cause — a redundant url.PathUnescape() call in serveExport(). An authenticated attacker can use double URL encoding (%252e%252e) to traverse directories and read arbitrary workspace files including the full SQLite database (siyuan.db), kernel log, and all user documents. This vulnerability is fixed in 3.6.5.","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":"SiYuan: Incomplete Fix Bypass for CVE-2026-30869: Path Traversal via Double URL Encoding in `/export/` Endpoint","id":"CVE-2026-41894","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":3,"n_references":3,"next":{"headline":"changedetection.io: XXE vulnerability in the changedetection.io project","id":"CVE-2026-41895"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GO-2026-5429"},{"ecosystem":"Go","fixed":["3.6.5"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":null,"source":"GHSA-hjh7-r5w8-5872"},{"ecosystem":"Go","fixed":["3.6.5"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GHSA-hjh7-r5w8-5872"}],"prev":{"headline":"Signal K Server's WebSocket Login Endpoint Lacks Rate Limiting (Credential Brute-Force)","id":"CVE-2026-41893"},"products":["siyuan"],"published":"2026-04-24","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":"2026-04-27","vendors":["siyuan-note"]},"summary":"An authenticated attacker can bypass path traversal protections via double URL encoding to read arbitrary workspace files, including the database and user documents.","url":"https://insights.sbomify.com/CVE-2026-41894/"}