CVE-2026-21766: The default login portlet in HCL Digital Experience and Digital Experience Compose insufficiently protects cre

Routine

MEDIUM 5.4

CVE-2026-21766 is a medium-severity flaw (CVSS 5.4) affecting affected software. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The default login portlet in HCL Digital Experience and Digital Experience Compose insufficiently protects credentials. Under certain very specific use cases and specific configurations, sensitive information may be written to web server logs. This only affects applications using the default login portlet.

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	High
User interaction	Required
EPSS exploit chance	0.3% (top 79%)
CISA exploited list	No
Weakness	CWE-522, CWE-532
Published	2026-08-05
Last modified	2026-10-23

Publisher (CNA): HCL Software

Timeline

2026-08-05 20:17 UTCPublished CVE record published
2026-10-23 21:10 UTCUpdated Record last modified

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References

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