# CVE-2026-21837: HCL Digital Experience OS command injection in Digital Asset Management API

Source: https://junglewise.ai/threats/cve-2026-21837-hcl-digital-experience-os-command-injection-in-digital-asset  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-05. Updated: 2026-06-05  
License: CC BY 4.0 with a link back

CVE-2026-21837 · Severity: info · CVSS 9.8 · Published 2026-06-05

HCL Digital Experience, a platform used by organizations to build and manage digital customer experiences, contains a critical security flaw in its asset management component. An attacker could exploit this vulnerability to take full control of the underlying server, potentially leading to the theft of sensitive data or a complete shutdown of the service. This issue poses a significant risk to business operations and data integrity.

Technologies: [HCL Digital Experience](https://junglewise.ai/threats/technologies/digital-experience), [HCL Digital Experience Compose](https://junglewise.ai/threats/technologies/digital-experience-compose). Vendors: [HCL](https://junglewise.ai/threats/vendors/hcl).

## 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

## References

- [https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0130849](https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0130849)

## Related threats

- [HCL Digital Experience HTML injection in input sanitation](https://junglewise.ai/threats/cve-2026-67075-hcl-digital-experience-is-affected-by-improper-input-sanitation)
- [HCL Digital Experience Host header injection](https://junglewise.ai/threats/cve-2026-21826-hcl-digital-experience-host-header-injection)
- [HCL Digital Experience Compose reflected XSS in search center](https://junglewise.ai/threats/cve-2026-21825-hcl-digital-experience-compose-reflected-xss-in-search-center)