Quick answers
- Is CVE-2026-56581 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-56581 being exploited in the wild.
- How severe is CVE-2026-56581?
- Low severity, with a CVSS score of 2.6, published 21 July 2026.
- Which products and versions are affected?
- HCL Software MyCloud 10.8.2.
- Is there a fix for CVE-2026-56581?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-56581 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-56581?
- Check whether you run HCL Software MyCloud at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
HCL MyCloud version 10.8.2 fails to set the 'Path' attribute for sensitive cookies, a vulnerability classified under CWE-614. This misconfiguration means cookies may be sent to unintended paths within the same domain, increasing the risk of session token leakage. The attack vector is network-based but requires high complexity and user interaction, typically involving a man-in-the-middle scenario or a cross-site scripting (XSS) vector on a sibling path. An attacker with low privileges could potentially capture authentication tokens to gain unauthorized access to the application.
Affected products
- HCL Software MyCloud 10.8.2
Timeline
- 2026-07-21: advisory: Initial advisory published by HCL Software
- 2026-07-21: disclosed: CVE-2026-56581 published to NVD dataset