CVE-2026-56538: An endpoint in HCL Connections is vulnerable to information disclosure

Q: How do I fix CVE-2026-56538?

connections: upgrade to 8.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-56538 being exploited?

CVE-2026-56538 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-56538 affect?

CVE-2026-56538 affects connections. Severity is low (CVSS 3.5). An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.

Q: How urgent is CVE-2026-56538?

Priority 17/100. No elevated risk signals yet.

Routine

LOW 3.5UPGRADE

CVE-2026-56538 is a low-severity flaw (CVSS 3.5) affecting connections. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	3.5 (Low)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	Required
EPSS exploit chance	0.3% (top 82%)
CISA exploited list	No
Weakness	CWE-213
Published	2026-07-27
Last modified	2026-10-24

Publisher (CNA): HCL Software · Vendor: hcltech

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-27 13:18 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

hcltech connections UPGRADE

Affected: < 8.0 · 8.0 · 8.0 cumulative_release1 · 8.0 cumulative_release10 · 8.0 cumulative_release2 · 8.0 cumulative_release3 · 8.0 cumulative_release4 · 8.0 cumulative_release5

Fixed in: 8.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy connections || rpm -q connections || connections --version

2. UPGRADE to 8.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade connections

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade connections

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-56538?

connections: upgrade to 8.0. Exact commands for each OS are on this page.

Is CVE-2026-56538 being exploited?

CVE-2026-56538 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-56538 affect?

CVE-2026-56538 affects connections. Severity is low (CVSS 3.5). An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.

How urgent is CVE-2026-56538?

Priority 17/100. No elevated risk signals yet.

Related CVEs

CVE-2026-56537 LOW 3.5 UPGRADE HCL Connections is vulnerable to information disclosure which could allow a user to obtain sensitive informati

References

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