{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-15640 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-15640 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-15640 is a critical authentication bypass vulnerability in Delinea Secret Server (On-Prem), published on 15 Sep 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-2026-15640 and fix it if it is affected.\n\nWhat it is: CVE-2026-15640 is a critical authentication bypass vulnerability in Delinea Secret Server (On-Prem), published on 15 Sep 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-2026-15640 in the wild and no public exploit code.\n\nAffected product: Delinea Secret Server (On-Prem). 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-2026-15640/ (Markdown: https://insights.sbomify.com/CVE-2026-15640/index.md)","id":"CVE-2026-15640","markdown":"https://insights.sbomify.com/CVE-2026-15640/index.md","name":"CVE-2026-15640","record":{"aliases":["GHSA-43cm-c736-gj85"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["account_takeover"],"network_reachable":"yes","non_default_config":false,"product_category":"Secret Server","requires_auth":"none","summary":"Attackers can impersonate other users by manipulating valid SAML responses, leading to unauthorized account access in Delinea Secret Server.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Delinea","cpe":[],"cvss":{"score":9.5,"severity":"critical","source":"cna","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:H","version":"4.0"},"cwes":[{"id":"CWE-290","name":"Authentication Bypass by Spoofing"}],"description":"Under certain conditions a valid SAML IdP response may be used to impersonate another Secret Server user.","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":"Authentication Bypass via SAML Response Manipulation","id":"CVE-2026-15640","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"auth_bypass","year":"2026"},"n_packages":0,"n_references":1,"next":{"headline":"Missing authorization in Server","id":"CVE-2026-15641"},"packages":[],"prev":{"headline":"Reflected Cross-Site Scripting","id":"CVE-2026-15639"},"products":["Secret Server (On-Prem)"],"published":"2026-09-15","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":"no","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-09-16","vendors":["Delinea"]},"summary":"Attackers can impersonate other users by manipulating valid SAML responses, leading to unauthorized account access in Delinea Secret Server.","url":"https://insights.sbomify.com/CVE-2026-15640/"}