{"id":"CVE-2026-21789","aliases":["EUVD-2026-30798","GHSA-hx5c-g9jj-chxv"],"status":"published","title":"HCL Connections is vulnerable to broken access control","description":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.","severity":{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00122,"percentile":0.01972,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-863"],"published":"2026-05-18T19:17:18Z","modified":"2026-10-26T13:10:00Z","products":[{"vendor":"hclsoftware","product":"connections"}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0129719"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21789"},{"url":"https://github.com/advisories/GHSA-hx5c-g9jj-chxv"}],"sources":{"cve":[{"id":"CVE-2026-21789","title":"HCL Connections is vulnerable to broken access control","description":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.","status":"published","published":"2026-05-18T19:17:18.844Z","modified":"2026-05-18T19:54:06.181Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-30798","description":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.","status":"published","published":"2026-05-18T19:17:18Z","modified":"2026-05-18T19:54:06Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:21:16.184545Z"}],"ghsa":[{"id":"GHSA-hx5c-g9jj-chxv","title":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user...","description":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.","status":"published","published":"2026-05-18T21:31:51Z","modified":"2026-05-18T21:31:59Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T15:08:12.004262Z"}],"nvd":[{"id":"CVE-2026-21789","description":"HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data in certain scenarios.","status":"published","published":"2026-05-18T20:16:37.607Z","modified":"2026-10-26T13:10:00.14Z","cvss":[{"version":"3.1","score":4.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-863"],"updated_at":"2026-11-02T14:12:19.39893Z"}]}}