{"id":"CVE-2023-33854","title":"IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, and 5.3 could allow an authenticated user to bypass client-side validation and manipulate input data using man in the middle techniques.","summary":"IBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, and 5.3 could allow an authenticated user to bypass client-side validation and manipulate input data using man in the middle techniques.","severity":"medium","cvss":5.3,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:H/A:N","cwe":["CWE-294"],"vendor":"ibm","product":"db2","affected":["db2 >= 4.8, < 5.4","db2_warehouse >= 4.8, < 5.4"],"patched":["db2 5.4","db2_warehouse 5.4"],"published":"2026-06-22","updated":"2026-09-26","sourceUpdated":"2026-09-26T23:10:00.127","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2023-33854","references":[{"url":"https://www.ibm.com/support/pages/node/7277112","label":"psirt@us.ibm.com"}],"tags":["nvd"],"epss":0.00251,"epssPercentile":0.14733,"ingestedAt":"2026-09-26T23:39:28.810Z","slug":"CVE-2023-33854","body":"## Overview\n\nIBM Db2 on Cloud Pak for Data and Db2 Warehouse on Cloud Pak for Data versions 4.8, 5.0, 5.1, 5.2, and 5.3 could allow an authenticated user to bypass client-side validation and manipulate input data using man in the middle techniques.\n\n## Affected\n\n- `db2 >= 4.8, < 5.4`\n- `db2_warehouse >= 4.8, < 5.4`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `db2 5.4`\n- `db2_warehouse 5.4`","depth":"sunlit","depthScore":29,"depthScoreParts":{"impact":29.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}