CVE-2026-21766: hclsoftware hcl digital experience and digital experience compose Insufficiently Protected Credentials
Vulnerability summary
CVE-2026-21766 is a medium (CVSS 5.4) Insufficiently Protected Credentials vulnerability in hclsoftware hcl digital experience and digital experience compose. EPSS estimates a 0.29% chance of exploitation in the next 30 days, higher than 20.7% of scored vulnerabilities.
Timeline
- 05-08-2026PublishedVulnerability first disclosed.
- 06-08-2026Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- NVDNIST5.4MediumCVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:C/C:H/I:N/A:N
EPSS trend
Probability
0.29%
Chance of exploitation in the next 30 days
Percentile
21%
Versus all other CVEs
30-day change
+0.11 pp
From 0.18% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-522Insufficiently Protected CredentialsThe product transmits or stores authentication credentials, but it uses an insecure method that is susceptible to unauthorized interception and/or retrieval.
- CWE-532Insertion of Sensitive Information into Log FileThe product writes sensitive information to a log file.
Affected systems
Hclsoftware1 product
1 vendor · 1 product