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    CVE-2026-21827

    HCL Connections is vulnerable to an information disclosure vulnerability which could allow a user to obtain sensitive information they are not entitled to, caused by improper handling of request data they are not entitled to, caused by improper handling of request data.

    Published:Aug 31, 2026
    Last Modified:Sep 1, 2026
    EPS:Aug 31, 2026
    EPSS Score:0.00151
    CVSS Score:3.1

    Affected Products

    Vendor
    Hcltech
    Product
    Connections

    Exploits

    No exploit reference

    Related CVEs

    CVE-2025-62341 (CVSS 3.7) — HCL Connections is vulnerable to server-side request forgery (SSRF) when an internal server is compromised pos…
    CVE-2026-56538 (CVSS 3.5) — An endpoint in HCL Connections is vulnerable to information disclosure. In certain scenarios this might lead t…
    CVE-2026-56537 (CVSS 3.5) — HCL Connections is vulnerable to information disclosure which could allow a user to obtain sensitive informati…
    CVE-2025-15619 (CVSS 3.5) — HCL Connections contains a broken access control vulnerability that may allow an unauthorized user to view dat…
    CVE-2026-21789 (CVSS 4.6) — HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data…
    CVE-2026-21788 (CVSS 5.4) — HCL Connections is vulnerable to a cross-site scripting attack where an attacker may leverage this issue to ex…
    CVE-2025-52603 (CVSS 3.5) — HCL Connections is vulnerable to information disclosure. In a very specific user navigation scenario, this co…
    CVE-2025-52639 (CVSS 3.5) — HCL Connections is vulnerable to a sensitive information disclosure vulnerability which could allow a user to …
    CVE-2025-31961 (CVSS 3.7) — HCL Connections contains a broken access control vulnerability that may allow unauthorized user to update data…
    CVE-2024-42209 (CVSS 3.5) — HCL Connections is vulnerable to an information disclosure vulnerability that could allow a user to obtain sen…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High