{"answers":{"affected":"2 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-2026-73054 exists.","fix":"Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260731131820-67bc300b6ea6 or later.","what":"CVE-2026-73054 is a high-severity authentication bypass vulnerability in siyuan-note siyuan, published on 15 Aug 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-2026-73054 and fix it if it is affected.\n\nWhat it is: CVE-2026-73054 is a high-severity authentication bypass vulnerability in siyuan-note siyuan, published on 15 Aug 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-2026-73054 exists.\n\nAffected packages and fixed versions:\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260731131820-67bc300b6ea6\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260731131820-67bc300b6ea6\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-2026-73054/ (Markdown: https://insights.sbomify.com/CVE-2026-73054/index.md)","id":"CVE-2026-73054","markdown":"https://insights.sbomify.com/CVE-2026-73054/index.md","name":"CVE-2026-73054","record":{"aliases":["GHSA-c8w8-3pqp-wr83"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["data_read","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"SiYuan note-taking app","requires_auth":"none","summary":"Unauthenticated attackers can bypass WebSocket authentication to access sensitive document metadata and operation logs in SiYuan.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-287","name":"Improper Authentication"}],"description":"SiYuan versions before v3.7.4 contain an authentication bypass vulnerability in the WebSocket endpoint caused by differential parsing of query parameters between authentication exemption and session quarantine checks. Unauthenticated attackers can craft a malicious WebSocket URI with duplicated query parameters to bypass access auth code validation and receive the live kernel event stream including document identifiers, titles, and operation logs.","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 before v3.7.4 Authentication Bypass via WebSocket","id":"CVE-2026-73054","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":2,"n_references":2,"next":{"headline":"Shescape before 2.1.15 and 3.0.2 Home Directory Disclosure via BusyBox","id":"CVE-2026-73055"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260731131820-67bc300b6ea6"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":null,"source":"GHSA-c8w8-3pqp-wr83"},{"ecosystem":"Go","fixed":["0.0.0-20260731131820-67bc300b6ea6"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GHSA-c8w8-3pqp-wr83"}],"prev":{"headline":"SiYuan before v3.7.4 Cross-Site Scripting via unicode2Emoji","id":"CVE-2026-73053"},"products":["siyuan"],"published":"2026-08-15","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":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["siyuan-note"]},"summary":"Unauthenticated attackers can bypass WebSocket authentication to access sensitive document metadata and operation logs in SiYuan.","url":"https://insights.sbomify.com/CVE-2026-73054/"}