{"answers":{"affected":"3 open source packages ship an affected version, including github.com/casdoor/casdoor.","exploited":"There is no known exploitation of CVE-2026-9091 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-9091 is a medium-severity vulnerability in Casdoor, published on 28 May 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-2026-9091 and fix it if it is affected.\n\nWhat it is: CVE-2026-9091 is a medium-severity vulnerability in Casdoor, published on 28 May 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-2026-9091 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/casdoor/casdoor (Go): affected all versions; no fix listed\n- github.com/casdoor/casdoor (Go): affected all versions up to 1.1000.1-0.20260321120606-239e8bd69487; no fix listed\n- github.com/casdoor/casdoor (Go): affected all versions up to 1.1000.1-0.20260321120606-239e8bd69487; 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-2026-9091/ (Markdown: https://insights.sbomify.com/CVE-2026-9091/index.md)","id":"CVE-2026-9091","markdown":"https://insights.sbomify.com/CVE-2026-9091/index.md","name":"CVE-2026-9091","record":{"aliases":["GHSA-gv4m-v8c8-hr3g","GO-2026-5896"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Casdoor identity provider","requires_auth":"none","summary":"Attackers can bypass Multi-Factor Authentication requirements by exploiting a logic flaw in the social-login binding flow of Casdoor.","user_interaction":"not_required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[],"cvss":{"score":5.3,"severity":"medium","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"cwes":[],"description":"Casdoor versions 2.362.0 and earlier contain a logic flaw in the social‑login binding flow that allows users to bypass configured MFA requirements. The binding‑rule code path in controllers/auth.go calls HandleLoggedIn directly without invoking checkMfaEnable. Any user authenticating via this path is logged in without MFA enforcement.","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":"CVE-2026-9091","id":"CVE-2026-9091","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"CVE-2026-9092","id":"CVE-2026-9092"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/casdoor/casdoor","purl":"pkg:golang/github.com/casdoor/casdoor","source":"GO-2026-5896"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.1000.1-0.20260321120606-239e8bd69487"],"package":"github.com/casdoor/casdoor","purl":null,"source":"GHSA-gv4m-v8c8-hr3g"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.1000.1-0.20260321120606-239e8bd69487"],"package":"github.com/casdoor/casdoor","purl":"pkg:golang/github.com/casdoor/casdoor","source":"GHSA-gv4m-v8c8-hr3g"}],"prev":{"headline":"CVE-2026-9090","id":"CVE-2026-9090"},"products":["Casdoor"],"published":"2026-05-28","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":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-05-29","vendors":["Casdoor"]},"summary":"Attackers can bypass Multi-Factor Authentication requirements by exploiting a logic flaw in the social-login binding flow of Casdoor.","url":"https://insights.sbomify.com/CVE-2026-9091/"}