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© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-21826

27
FAUCET Score

HCL Digital Experience and HCL Digital Experience Compose could be susceptible to Host header injection.  An attacker can manipulate the Host header and cause the application to behave in unexpected ways.

First published: Jun 5, 2026Last modified: Jun 5, 2026

Impacted Technologies

VendorProductVersion(s)CPE
9.5CPE matchmatch criteria
cpe:2.3:a:hcltech:digital_experience_compose:9.5:-:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:hcltech:digital_experience_compose:9.5:cf224:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:hcltech:digital_experience_compose:9.5:cf225:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:hcltech:digital_experience_compose:9.5:cf226:*:*:*:*:*:*
9.5CPE matchmatch criteria
cpe:2.3:a:hcltech:digital_experience_compose:9.5:cf227:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
2.7
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.14%
Probability of exploitation in next 30 days
EPSS Percentile
4.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0014 is in the 3rd percentile among its peer group of 26,234 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.hcl-software.com / csm
Vendor Advisory