{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-89209 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-89209 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-89209 is a high-severity vulnerability in Siemens Mendix SAML (Mendix 10 compatible), published on 26 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-89209 and fix it if it is affected.\n\nWhat it is: CVE-2026-89209 is a high-severity vulnerability in Siemens Mendix SAML (Mendix 10 compatible), published on 26 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-89209 in the wild and no public exploit code.\n\nAffected product: Siemens Mendix SAML (Mendix 10 compatible). No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-89209/ (Markdown: https://insights.sbomify.com/CVE-2026-89209/index.md)","id":"CVE-2026-89209","markdown":"https://insights.sbomify.com/CVE-2026-89209/index.md","name":"CVE-2026-89209","record":{"aliases":["GHSA-c6gm-hvjc-mr8p"],"analysis":null,"analysis_generated_by":null,"assigner":"siemens","cpe":[],"cvss":{"score":7.6,"severity":"high","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:P/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-294","name":"Authentication Bypass by Capture-replay"}],"description":"A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions \u003c V4.2.4), Mendix SAML (Mendix 11 compatible) (All versions \u003c V4.2.4), Mendix SAML (Mendix 9 compatible) (All versions \u003c V3.6.29). Affected versions of the module do not properly protect against SAML assertion replay in IdP-initiated authentication flows. This could allow unauthenticated remote attackers to gain unauthorized access to the application by replaying a valid SAML response.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":null,"headline":"A vulnerability has been identified in Mendix SAML (Mendix 10 compatible) (All versions \u003c V4.2.4), Mendix SAML (Mendix 11 compatible) (All v","id":"CVE-2026-89209","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"XML External Entity in Akana API Platform","id":"CVE-2026-89212"},"packages":[],"prev":{"headline":"Memory corruption in Capital Embedded AR Classic 431-422","id":"CVE-2026-89208"},"products":["Mendix SAML (Mendix 10 compatible)","Mendix SAML (Mendix 11 compatible)","Mendix SAML (Mendix 9 compatible)"],"published":"2026-10-26","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-26","vendors":["Siemens"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-89209/"}