{"id":"CVE-2026-111594","title":"InterSystems Corporation InterSystems IRIS for Health Cleartext Transmission of Sensitive Information","summary":"InterSystems IRIS for Health has TLS/SSL encryption turned off by default, which may enable an attacker to view transmitted data and use that data to log into the device.","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","cvssSource":"cna","cwe":["CWE-319"],"vendor":"InterSystems","product":"IRIS for Health","affected":["iris_for_health 2026.2.0.221","iris_for_health 2026.1.0.235","iris_for_health 2025.3.0.226"],"published":"2026-10-22","updated":"2026-10-22","sourceUpdated":"2026-10-22T21:39:47.105Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111594","references":[{"url":"https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls?KEY=ROARS_gsecuring_checklist"},{"url":"https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls?KEY=GSA_manage_superserver"},{"url":"https://wrc.intersystems.com"},{"url":"https://www.cisa.gov/news-events/ics-medical-advisories/icsma-26-295-01"},{"url":"https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsma-26-295-01.json"}],"tags":["cve.org"],"ingestedAt":"2026-10-22T22:00:50.449Z","slug":"CVE-2026-111594","body":"## Overview\n\nInterSystems IRIS for Health has TLS/SSL encryption turned off by default, which may enable an attacker to view transmitted data and use that data to log into the device.\n\n## Affected\n\n- `iris_for_health 2026.2.0.221`\n- `iris_for_health 2026.1.0.235`\n- `iris_for_health 2025.3.0.226`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n### Workarounds\n\nInterSystems recommends users configure IRIS superserver to require SSL/TLS:  https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls?KEY=ROARS_gsecuring_checklist  Note that there are three settings: \"Disabled\", which means that client communications do not use TLS. \"Enabled\", which means that client communications may use TLS (but they also may not) and \"Required\", which forces all client communications to use TLS.\n\n\n\nInterSystems documentation explains how to configure the server to require TLS:  https://docs.intersystems.com/irislatest/csp/docbook/DocBook.UI.Page.cls?KEY=GSA_manage_superserver \n\n\n\nFor more information about how to configure a system to mitigate this vulnerability, contact InterSystems at their world wide response center:  https://wrc.intersystems.com  (login required)","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}