CVE-2026-91762: Hitachi Dynamic Link Manager for Linux symlink following vulnerability

CVE-2026-91762 · Severity: high · CVSS 7.9 · Published 2026-11-10

Hitachi Dynamic Link Manager for Linux is a critical component for managing multipath storage connections on Linux systems. A symlink following vulnerability allows a local authenticated attacker with user interaction to manipulate file operations, potentially leading to data integrity compromise or denial of service across the system.

Technologies: Hitachi Dynamic Link Manager for Linux. Vendors: Hitachi.

Quick answers

Is CVE-2026-91762 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-91762 being exploited in the wild.
How severe is CVE-2026-91762?
High severity, with a CVSS score of 7.9, published 10 November 2026.
Which products and versions are affected?
Hitachi Dynamic Link Manager for Linux 8.5.3-00 to 9.0.3-01.
Is there a fix for CVE-2026-91762?
Yes: fixed in 9.0.5-00. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-91762 attacked?
It is attacked with local access.
Am I affected by CVE-2026-91762?
Check whether you run Hitachi Dynamic Link Manager for Linux 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.

How to fix

  • Fixed in: 9.0.5-00

Technical details

CVE-2026-91762 is an insecure temporary file vulnerability in Hitachi Dynamic Link Manager for Linux that fails to properly validate symbolic links before file access. The vulnerability requires local access and user privileges with user interaction (UI:R), and can impact system integrity and availability (I:H/A:H). The issue affects versions 8.5.3-00 through 9.0.3-01 and is fixed in 9.0.5-00.

Affected products

  • Hitachi Dynamic Link Manager for Linux 8.5.3-00 to 9.0.3-01

Timeline

  • 2026-11-10: disclosed

References

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