{"id":"CVE-2026-21833","aliases":["EUVD-2026-90966","GHSA-8876-cgqf-cw39"],"status":"published","title":"HCL AION is susceptible to a Missing \"Content-Security-Policy\" header Vulnerability (CVE-2026-21833)","description":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.","severity":{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00205,"percentile":0.10549,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-1032"],"published":"2026-10-01T16:54:24Z","modified":"2026-10-02T18:47:49Z","products":[{"vendor":"hcl","product":"aion"},{"vendor":"hcl software","product":"aion"}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article\u0026sysparm_article=KB0134082"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-21833"},{"url":"https://github.com/advisories/GHSA-8876-cgqf-cw39"}],"sources":{"cve":[{"id":"CVE-2026-21833","title":"HCL AION is susceptible to a Missing \"Content-Security-Policy\" header Vulnerability (CVE-2026-21833)","description":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.","status":"published","published":"2026-10-01T16:54:24.057Z","modified":"2026-10-01T18:03:33.734Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"cna"}],"cwes":["CWE-1032"],"updated_at":"2026-11-02T13:41:53.237769Z"}],"euvd":[{"id":"EUVD-2026-90966","description":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.","status":"published","published":"2026-10-01T16:54:24Z","modified":"2026-10-01T18:03:33Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T17:27:44.322377Z"}],"ghsa":[{"id":"GHSA-8876-cgqf-cw39","title":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response...","description":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.","status":"published","published":"2026-10-01T18:32:44Z","modified":"2026-10-01T18:32:49Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low"}],"updated_at":"2026-11-02T15:12:41.196374Z"}],"nvd":[{"id":"CVE-2026-21833","description":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured. CSP helps prevent attacks such as Cross-Site Scripting (XSS) by restricting the sources from which scripts, styles, and other resources can be loaded. The absence of this header may reduce the effectiveness of browser-based security controls, potentially resulting in unintended behavior or negative security impacts under certain conditions.","status":"published","published":"2026-10-01T17:17:23.38Z","modified":"2026-10-02T18:47:49.947Z","cvss":[{"version":"3.1","score":3.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","level":"low","assessor":"secondary"}],"cwes":["CWE-1032"],"updated_at":"2026-11-02T14:12:53.41762Z"}]}}