{"answers":{"affected":"3 open source packages ship an affected version, including github.com/casdoor/casdoor.","exploited":"There is no known exploitation of CVE-2026-9098 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-9098 is a critical authentication bypass 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-2026-9098 and fix it if it is affected.\n\nWhat it is: CVE-2026-9098 is a critical authentication bypass 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-2026-9098 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-2026-9098/ (Markdown: https://insights.sbomify.com/CVE-2026-9098/index.md)","id":"CVE-2026-9098","markdown":"https://insights.sbomify.com/CVE-2026-9098/index.md","name":"CVE-2026-9098","record":{"aliases":["GHSA-mfvp-7p3v-x9mh","GO-2026-5898"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Casdoor identity provider","requires_auth":"none","summary":"Attackers can bypass SAML authentication checks to gain unauthorized persistent access to Casdoor accounts by sending unsolicited or replayed responses.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"certcc","cpe":[],"cvss":{"score":9.1,"severity":"critical","source":"cisa-adp","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N","version":"3.1"},"cwes":[],"description":"In Casdoor versions 2.362.0 and earlier, the SAML callback handler in controllers/auth.go accepts any well-formed SAMLResponse sent to /api/acs without verifying that it corresponds to an AuthnRequest previously issued by Casdoor. Additionally, if an administrator disables or deletes an IdP (Identity Provider) after a SAML flow has started, the handler still processes the response using the provider snapshot loaded at the start of the request. As a result, an attacker controlling a registered upstream IdP can send unsolicited SAML responses, or replay a legitimately captured response in a different session or after the original flow has ended. In both cases, Casdoor accepts the response and issues a session, enabling persistent unauthorized access.","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-2026-9098","id":"CVE-2026-9098","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":3,"n_references":1,"next":{"headline":"Keycloak: group-admin escalation to realm-admin","id":"CVE-2026-9099"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/casdoor/casdoor","purl":"pkg:golang/github.com/casdoor/casdoor","source":"GO-2026-5898"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":["1.1000.1-0.20260321120606-239e8bd69487"],"package":"github.com/casdoor/casdoor","purl":null,"source":"GHSA-mfvp-7p3v-x9mh"},{"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-mfvp-7p3v-x9mh"}],"prev":{"headline":"CVE-2026-9097","id":"CVE-2026-9097"},"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":"total"},"state":"PUBLISHED","updated":"2026-06-02","vendors":["Casdoor"]},"summary":"Attackers can bypass SAML authentication checks to gain unauthorized persistent access to Casdoor accounts by sending unsolicited or replayed responses.","url":"https://insights.sbomify.com/CVE-2026-9098/"}