{"answers":{"affected":"3 open source packages ship an affected version, including github.com/siyuan-note/siyuan/kernel.","exploited":"There is no known exploitation of CVE-2026-72812 in the wild and no public exploit code.","fix":"Upgrade github.com/siyuan-note/siyuan/kernel to 0.0.0-20260723002528-7d273c271ce1 or later.","what":"CVE-2026-72812 is a medium-severity missing authorization vulnerability in siyuan-note siyuan, published on 14 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-2026-72812 and fix it if it is affected.\n\nWhat it is: CVE-2026-72812 is a medium-severity missing authorization vulnerability in siyuan-note siyuan, published on 14 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-72812 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260723002528-7d273c271ce1\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260723002528-7d273c271ce1\n- github.com/siyuan-note/siyuan/kernel (Go): affected all versions; fixed in 0.0.0-20260723002528-7d273c271ce1\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-2026-72812/ (Markdown: https://insights.sbomify.com/CVE-2026-72812/index.md)","id":"CVE-2026-72812","markdown":"https://insights.sbomify.com/CVE-2026-72812/index.md","name":"CVE-2026-72812","record":{"aliases":["GHSA-wgwx-479j-23vq","GO-2026-6408"],"analysis":{"component_type":"desktop_application","fix_type":"upgrade","impacts":["denial_of_service","data_modify"],"network_reachable":"yes","non_default_config":false,"product_category":"SiYuan note-taking app","requires_auth":"none","summary":"Attackers can trigger persistent server-side writes and resource amplification via an unauthenticated API endpoint, bypassing read-only protections.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"VulnCheck","cpe":[],"cvss":{"score":6.9,"severity":"medium","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-862","name":"Missing Authorization"}],"description":"SiYuan versions before v3.7.4 contain a missing authorization vulnerability in the /api/ref/refreshBacklink endpoint that allows anonymous readers to trigger persistent server-side writes. Attackers can invoke the endpoint with an attacker-controlled block ID to flush transaction queues, scan all references globally, and enqueue database writes, bypassing read-only protections and enabling resource amplification attacks.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"SiYuan before v3.7.4 Missing Authorization via refreshBacklink","id":"CVE-2026-72812","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"actix-files before 0.6.10 Denial of Service via empty Range header","id":"CVE-2026-72813"},"packages":[{"ecosystem":"Go","fixed":["0.0.0-20260723002528-7d273c271ce1"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":null,"source":"GHSA-wgwx-479j-23vq"},{"ecosystem":"Go","fixed":["0.0.0-20260723002528-7d273c271ce1"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GHSA-wgwx-479j-23vq"},{"ecosystem":"Go","fixed":["0.0.0-20260723002528-7d273c271ce1"],"introduced":["0"],"last_affected":[],"package":"github.com/siyuan-note/siyuan/kernel","purl":"pkg:golang/github.com/siyuan-note/siyuan/kernel","source":"GO-2026-6408"}],"prev":{"headline":"SiYuan before v3.7.4 SQL Injection via backlink search","id":"CVE-2026-72811"},"products":["siyuan"],"published":"2026-08-14","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":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-08-17","vendors":["siyuan-note"]},"summary":"Attackers can trigger persistent server-side writes and resource amplification via an unauthenticated API endpoint, bypassing read-only protections.","url":"https://insights.sbomify.com/CVE-2026-72812/"}