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PatchSiren cyber security CVE debrief

CVE-2026-56579 HCLSoftware CVE debrief

CVE-2026-56579 is a low-severity vulnerability in HCL MyCloud, a product from HCL Technologies, that results in the exposure of license keys in HTTP responses. This issue, tracked under CVE-2026-56579, could potentially allow attackers to misuse the exposed information, thereby compromising the security of the application. The vulnerability has been analyzed and detailed in the NVD database.

Vendor
HCLSoftware
Product
MyCloud
CVSS
LOW 3.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-07-21
Original CVE updated
2026-08-03
Advisory published
2026-07-21
Advisory updated
2026-08-03

Who should care

Administrators and security teams responsible for HCL MyCloud installations should be aware of this vulnerability. Given its low CVSS score of 3.1, it may not be considered a high priority, but it still requires attention to prevent potential misuse of exposed license keys.

Technical summary

The vulnerability is described as a case of a license key being revealed in HTTP responses in HCL MyCloud. The Common Vulnerabilities and Exposures (CVE) score for this issue is 3.1, indicating a low severity level. The vulnerability's CVSS vector is CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N, indicating that it requires a low level of privileges to exploit and can lead to limited confidentiality impacts. The weakness associated with this vulnerability is CWE-200, related to exposure of sensitive information.

Defensive priority

Low priority, but recommended to address to prevent potential information misuse.

Recommended defensive actions

  • Review and update HCL MyCloud installations to ensure they are not exposing sensitive information.
  • Implement appropriate security measures to protect against potential misuse of exposed license keys.
  • Monitor HCL MyCloud for any suspicious activity related to license key exposure.

Evidence notes

The CVE record was published on 2026-07-21T18:17:01.787Z and was last modified on 2026-07-22T19:17:06.713Z. The NVD entry for this vulnerability is currently Analyzed. A vendor advisory is available for mitigation steps.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-56579 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-56579

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-56579 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-56579

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.