6.1

CVE-2026-21826: hclsoftware digital experience & dx compose Open Redirect

CVSS: 6.1v3.1MediumAnalyzed
Published 05-06-2026Last modified 09-06-2026
Open JSON

Vulnerability summary

CVE-2026-21826 is a medium (CVSS 6.1) Open Redirect vulnerability in hclsoftware digital experience & dx compose. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-06-2026
    PublishedVulnerability first disclosed.
  2. 09-06-2026
    Last modifiedVulnerability information updated.

Description

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

0.00 pp

From 0.14% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.14%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Hcltech2 products
  • digital_experience9.5 | 9.5:cf17 | 9.5:cf171 | 9.5:cf172 | 9.5:cf173 | 9.5:cf18 | 9.5:cf181 | 9.5:cf182 | 9.5:cf183 | 9.5:cf184 | 9.5:cf19 | 9.5:cf191 | 9.5:cf192 | 9.5:cf193 | 9.5:cf194 | 9.5:cf195 | 9.5:cf196 | 9.5:cf197 | 9.5:cf198 | 9.5:cf199 | 9.5:cf200 | 9.5:cf201 | 9.5:cf202 | 9.5:cf203 | 9.5:cf204 | 9.5:cf205 | 9.5:cf206 | 9.5:cf207 | 9.5:cf208 | 9.5:cf209 | 9.5:cf210 | 9.5:cf211 | 9.5:cf212 | 9.5:cf213 | 9.5:cf214 | 9.5:cf215 | 9.5:cf216 | 9.5:cf217 | 9.5:cf218 | 9.5:cf219 | 9.5:cf220 | 9.5:cf221 | 9.5:cf222 | 9.5:cf223 | 9.5:cf224 | 9.5:cf225 | 9.5:cf226 | 9.5:cf227 | 9.5:cf228 | 9.5:cf229 | 9.5:cf230 | 9.5:cf231 | 9.5:cf232 | 9.5:cf233 | 9.5:cf234
  • digital_experience_compose9.5 | 9.5:cf224 | 9.5:cf225 | 9.5:cf226 | 9.5:cf227 | 9.5:cf228 | 9.5:cf229 | 9.5:cf230 | 9.5:cf231 | 9.5:cf232 | 9.5:cf233 | 9.5:cf234
Hclsoftware1 product

2 vendors · 3 products

References

1 links