Quick answers
- Is CVE-2026-21837 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-21837 being exploited in the wild.
- How severe is CVE-2026-21837?
- Informational severity, with a CVSS score of 9.8, published 5 June 2026.
- Which products and versions are affected?
- HCL Digital Experience; HCL Digital Experience Compose.
- Is there a fix for CVE-2026-21837?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-21837 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-21837?
- Check whether you run HCL Digital Experience or HCL Digital Experience Compose. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
An OS command injection vulnerability exists within the Digital Asset Management (DAM) API of HCL Digital Experience. The flaw allows a remote attacker to inject and execute arbitrary operating system commands by sending specially crafted requests to the affected API endpoint. Successful exploitation typically results in the attacker gaining the privileges of the application service account, which can lead to full system compromise, lateral movement, and unauthorized data access. Users are advised to consult HCL security bulletins for specific patch versions and remediation steps.
Affected products
- HCL Digital Experience
- HCL Digital Experience Compose
Timeline
- 2026-06-05: disclosed