{"id":"CVE-2026-21833","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-21833","generatedAt":"2026-10-28T06:35:18.885Z","title":"HCL AION is affected by a vulnerability in which the Content-Security-Policy (CSP) HTTP response header is not configured.","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.","published":"2026-10-01T17:17:23.000Z","lastModified":"2026-10-02T18:47:50.000Z","status":"Deferred","sourceIdentifier":"psirt@hcl.com","cvss":{"version":"3.1","score":3.7,"severity":"LOW","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N"},"cwe":["CWE-1032"],"affected":[],"epss":{"score":0.00205,"percentile":0.10346,"date":"2026-10-27","history":[{"date":"2026-10-02","score":0.00205,"percentile":0.09442}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.21%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-01T17:17:23.000Z","detail":{"score":"3.7","severity":"LOW","publishedAt":"2026-10-01T17:17:23.380Z"},"summary":"New CVE, low severity (CVSS 3.7)."}],"references":[{"url":"https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0134082","source":"psirt@hcl.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-21833","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}