{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-20184 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-20184 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-20184 is a critical authentication bypass vulnerability in Cisco Webex Meetings, published on 15 Apr 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-2026-20184 and fix it if it is affected.\n\nWhat it is: CVE-2026-20184 is a critical authentication bypass vulnerability in Cisco Webex Meetings, published on 15 Apr 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-2026-20184 in the wild and no public exploit code.\n\nAffected product: Cisco Webex Meetings. 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-2026-20184/ (Markdown: https://insights.sbomify.com/CVE-2026-20184/index.md)","id":"CVE-2026-20184","markdown":"https://insights.sbomify.com/CVE-2026-20184/index.md","name":"CVE-2026-20184","record":{"aliases":["GHSA-hh5g-g7m5-5vxv"],"analysis":{"component_type":"cloud_service","fix_type":"patch","impacts":["account_takeover","security_bypass"],"network_reachable":"yes","non_default_config":false,"product_category":"Cisco Webex Meetings","requires_auth":"none","summary":"An unauthenticated remote attacker can impersonate any user in Cisco Webex Services by exploiting improper certificate validation in SSO integration.","user_interaction":"not_required","vuln_class":"auth_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"cisco","cpe":[],"cvss":{"score":9.8,"severity":"critical","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-295","name":"Improper Certificate Validation"}],"description":"A vulnerability in the integration of single sign-on (SSO) with Control Hub in Cisco Webex Services could have allowed an unauthenticated, remote attacker to impersonate any user within the service.\r\n\r\nThis vulnerability existed because of improper certificate validation. Prior to this vulnerability being addressed, an attacker could have exploited this vulnerability by connecting to a service endpoint and supplying a crafted token. A successful exploit could have allowed the attacker to gain unauthorized access to legitimate Cisco Webex services.","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":"Cisco Webex Meetings Certificate Validation Vulnerability","id":"CVE-2026-20184","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":"Cisco SG350 and SG350X Series Managed Switches SNMP Denial of Service Vunerability","id":"CVE-2026-20185"},"packages":[],"prev":{"headline":"Cisco Catalyst SD-WAN Controller Authentication Bypass","id":"CVE-2026-20182"},"products":["Cisco Webex Meetings"],"published":"2026-04-15","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":"yes","exploitation":"none","technical_impact":"total"},"state":"PUBLISHED","updated":"2026-04-16","vendors":["Cisco"]},"summary":"An unauthenticated remote attacker can impersonate any user in Cisco Webex Services by exploiting improper certificate validation in SSO integration.","url":"https://insights.sbomify.com/CVE-2026-20184/"}