Vulnerability in Hcl Software Aion
CVE-2026-21850
HCL AION is affected by a vulnerability where user-controlled input could be included in HTTP response headers without proper neutralization of CR/LF characters. This may allow an attacker to inject headers or split responses, potentially resulting in unintended behavior or security impact under certain conditions.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Hcl Software Aion — versions V 2.6.0
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-21850?
- CVE-2026-21850 is a medium-severity vulnerability in Hcl Software Aion, classified under HTTP Response Splitting. CVSS score: 6.5/10. Published 2026-11-06.
- How severe is CVE-2026-21850?
- Medium severity. CVSS v3 base score is 6.5 out of 10.