CVE-2026-82117: Hitachi HiRDB authentication bypass by spoofing

CVE-2026-82117 · Severity: critical · CVSS 9.8 · Published 2026-10-27

Hitachi HiRDB is a relational database server used in enterprise environments to store and manage business-critical data. An authentication bypass vulnerability allows an attacker to spoof credentials and gain unauthorized access to the database without valid authentication, potentially exposing sensitive data and enabling unauthorized modifications or system compromise.

Technologies: Hitachi HiRDB Server Version 10, Hitachi HiRDB Server Version 9, Hitachi HiRDB Server Version 9(32), Hitachi HiRDB Server with Additional Function Version 9, Hitachi HiRDB Server with Additional Function Version 9(32). Vendors: Hitachi.

Quick answers

Is CVE-2026-82117 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-82117 being exploited in the wild.
How severe is CVE-2026-82117?
Critical severity, with a CVSS score of 9.8, published 27 October 2026.
Which products and versions are affected?
Hitachi HiRDB Server Version 10 10-00 to 10-11-01; platform-specific up to 10-12; Hitachi HiRDB Server Version 9 09-00 to 09-66-22; Hitachi HiRDB Server Version 9(32) 09-02 to 09-66-22; Hitachi HiRDB Server with Additional Function Version 9 09-00 to 09-66-/V; and 1 more.
Is there a fix for CVE-2026-82117?
Yes: fixed in HiRDB Server Version 10: 10-12-01, 10-11-02, 10-08-05. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-82117 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-82117?
Check whether you run Hitachi HiRDB Server Version 10, Hitachi HiRDB Server Version 9, Hitachi HiRDB Server Version 9(32) or one of the others listed 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: HiRDB Server Version 10: 10-12-01, 10-11-02, 10-08-05

Technical details

An authentication bypass vulnerability via credential spoofing exists in HiRDB Server, allowing remote unauthenticated attackers to bypass authentication controls without authentication prerequisites. The vulnerability provides complete compromise of confidentiality, integrity, and availability of the database system. Patches are available for Version 10 and partial patches for Version 9.

Affected products

  • Hitachi HiRDB Server Version 10 10-00 to 10-11-01; platform-specific up to 10-12
  • Hitachi HiRDB Server Version 9 09-00 to 09-66-22
  • Hitachi HiRDB Server with Additional Function Version 9 09-00 to 09-66-/V
  • Hitachi HiRDB Server Version 9(32) 09-02 to 09-66-22
  • Hitachi HiRDB Server with Additional Function Version 9(32) 09-00 to 09-66-/V

Timeline

  • 2026-10-27: disclosed

References

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