High severity · published Jan 19, 2026
CVE-2025-52659
HCL AION is affected by a Cacheable HTTP Response vulnerability
7.5
CVSS
0.2%
EPSS
No
On KEV
Description
HCL AION version 2 is affected by a Cacheable HTTP Response vulnerability. This may lead to unintended storage of sensitive or dynamic content, potentially resulting in unauthorized access or information disclosure.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 9% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AI
AION · HCL Software
2 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-52659
CVE.org
https://www.cve.org/CVERecord?id=CVE-2025-52659
Vendor Advisory
https://support.hcl-software.com/kb_view.do?sys_kb_id=4b92474633de7ad4159a05273e5c7b4b&searchTerm=kb0127995#
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