CVE-2026-18554: IBM Db2 Mirror for i path traversal information disclosure

CVE-2026-18554 · Severity: high · CVSS 7.5 · Published 2026-08-14

IBM Db2 Mirror for i is a database mirroring and high availability solution used to protect business-critical data and ensure continuous database availability. An authenticated attacker can exploit a path traversal flaw in the GUI to access sensitive files outside intended directories, potentially exposing configuration data, credentials, or other protected information stored on the system.

Technologies: IBM Db2 Mirror For I. Vendors: IBM.

Quick answers

Is CVE-2026-18554 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-18554 being exploited in the wild.
How severe is CVE-2026-18554?
High severity, with a CVSS score of 7.5, published 14 August 2026.
Which products and versions are affected?
IBM Db2 Mirror For I 7.4, 7.5, 7.6.
Is there a fix for CVE-2026-18554?
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-2026-18554 attacked?
It is attacked over the network, in a hosted service.
Am I affected by CVE-2026-18554?
Check whether you run IBM Db2 Mirror For I 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

The vulnerability is a path traversal flaw (CWE-22: Improper Limitation of a Pathname to a Restricted Directory) in IBM Db2 Mirror for i versions 7.4, 7.5, and 7.6. An authenticated remote attacker can manipulate file path parameters in the GUI to traverse directory boundaries and read files outside the intended restricted directory. The attack requires authentication and network access to the Db2 Mirror for i interface. Successful exploitation allows an attacker to obtain sensitive information stored on the system. Patch availability should be verified through IBM's security bulletins.

Affected products

  • IBM Db2 Mirror for i 7.4, 7.5, 7.6

Timeline

  • 2026-08-14: disclosed

References

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