{"id":"CVE-2026-21834","aliases":["EUVD-2026-118310","GHSA-3x34-rrf9-2wfx"],"status":"published","title":"HCL AION is affected by multiple security vulnerabilities.","description":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.","severity":{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.00152,"percentile":0.04447,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1021"],"published":"2026-11-06T15:23:05Z","modified":"2026-11-06T18:35:14Z","products":[{"vendor":"hcl","product":"hcl aion"},{"vendor":"hcl software","product":"hcl aion"}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0135217"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21834"},{"url":"https://github.com/advisories/GHSA-3x34-rrf9-2wfx"}],"sources":{"cve":[{"id":"CVE-2026-21834","title":"HCL AION is affected by multiple security vulnerabilities.","description":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.","status":"published","published":"2026-11-06T15:23:05.022Z","modified":"2026-11-10T14:39:07.436Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-1021"],"updated_at":"2026-11-10T15:39:11.409762Z"}],"euvd":[{"id":"EUVD-2026-118310","description":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.","status":"published","published":"2026-11-06T15:23:05Z","modified":"2026-11-10T14:39:07Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-06T21:07:08.044882Z"}],"ghsa":[{"id":"GHSA-3x34-rrf9-2wfx","title":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response...","description":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.","status":"published","published":"2026-11-06T18:35:14Z","modified":"2026-11-06T18:35:14Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"cwes":["CWE-1021"],"updated_at":"2026-11-06T19:01:26.771329Z"}],"nvd":[{"id":"CVE-2026-21834","description":"HCL AION is affected by a vulnerability where the Content-Security-Policy (CSP) security response header was missing from application responses. Without this header, the browser does not restrict the sources of scripts and other content, increasing exposure to cross-site scripting and content-injection attacks, potentially resulting in unintended behavior or security impact under certain conditions.","status":"published","published":"2026-11-06T16:17:56.33Z","modified":"2026-11-10T15:17:28.35Z","cvss":[{"version":"3.1","score":3.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-1021"],"updated_at":"2026-11-07T00:02:36.552517Z"}]}}