How severe is CVE-2026-56538?

CVE-2026-56538 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.

Is CVE-2026-56538 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-56538?

CVE-2026-56538 primarily affects Hcltech Connections. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-56538?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-56538 published?

CVE-2026-56538 was published on 2026-07-27 and last updated on 2026-08-20.

CVE-2026-56538

CVE-2026-56538 is a low-severity vulnerability in Hcltech Connections with a CVSS 3.x base score of 3.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-213.

Key facts

Severity: Low (CVSS 3.x base score 3.5)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-213
Affected product: Hcltech Connections
Published: 2026-07-27
Last modified: 2026-08-20

Description

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

Frequently asked questions

What is CVE-2026-56538?: An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead to disclosing sensitive information to unauthorized users.
How severe is CVE-2026-56538?: CVE-2026-56538 has a CVSS 3.x base score of 3.5, rated low severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity none, and availability none.
Is CVE-2026-56538 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-56538?: CVE-2026-56538 primarily affects Hcltech Connections. In total, 12 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-56538?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-56538 published?: CVE-2026-56538 was published on 2026-07-27 and last updated on 2026-08-20.

References

https://support.hcl-software.com/csm?id=kb_article&sysparm_article=KB0132507

Affected products (12)

cpe:2.3:a:hcltech:connections:*:*:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:-:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release1:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release10:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release2:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release3:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release4:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release5:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release6:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release7:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release8:*:*:*:*:*:*
cpe:2.3:a:hcltech:connections:8.0:cumulative_release9:*:*:*:*:*:*

More vulnerabilities in Hcltech Connections

CVE-2020-4085 — Medium (CVSS 6.5): "HCL Connections is vulnerable to possible information leakage and could disclose sensitive information via stack trace…
CVE-2019-4209 — Medium (CVSS 6.1): HCL Connections v5.5, v6.0, and v6.5 contains an open redirect vulnerability which could be exploited by an attacker to…
CVE-2023-28018 — Medium (CVSS 5.5): HCL Connections is vulnerable to a denial of service, caused by improper validation on certain requests. Using a…
CVE-2020-4083 — Medium (CVSS 5.5): HCL Connections 6.5 is vulnerable to possible information leakage. Connections could disclose sensitive information via…
CVE-2026-21788 — Medium (CVSS 5.4): HCL Connections is vulnerable to a cross-site scripting attack where an attacker may leverage this issue to execute…
CVE-2024-30112 — Medium (CVSS 5.4): HCL Connections is vulnerable to a cross-site scripting attack where an attacker may leverage this issue to execute…

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CVE-2026-6280 — Medium (CVSS 6.5): Exposure of sensitive information due to incompatible policies vulnerability in NOMYSOFT Informatics Education and…
CVE-2025-54831 — Medium (CVSS 6.5): Apache Airflow 3 introduced a change to the handling of sensitive information in Connections. The intent was to…
CVE-2024-7267 — Medium (CVSS 6.5): Exposure of Sensitive Information vulnerability in Naukowa i Akademicka Sieć Komputerowa - Państwowy Instytut…

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