IBM Storage Scale, Information Disclosure via Logging, CVE-2026-19483 (Medium) -DC-Aug2026-1589

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CVE-2026-19483 is an information disclosure vulnerability identified in IBM Storage Scale (formerly IBM Spectrum Scale) and its Management GUI component. The vulnerability stems from the insecure logging of sensitive information, specifically administrative credentials, into log files during system deployment and upgrade operations.
The root cause of this vulnerability is improper handling of sensitive data within the logging mechanisms of the Management GUI. When an administrator performs a system deployment or an upgrade through the GUI, the administrative password is inadvertently written to the GUI log files in plaintext. Additionally, exception handling routines within the GUI may also leak other secrets when errors occur. This insecure logging practice violates the principle of least privilege and directly exposes critical authentication material.
The vulnerability affects a wide range of IBM Storage Scale versions, spanning both the 5.2.3.x and 6.0.x release lines. The issue is classified under CWE-532: Insertion of Sensitive Information into Log File, highlighting a failure to sanitize or redact sensitive data before writing to logs.
From a CVSS perspective, the vulnerability is scored differently by NIST and IBM. NIST assigns a Base Score of 5.5 (MEDIUM) with the vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. However, IBM Corporation assesses the severity as 7.1 (HIGH) with the vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N. The discrepancy arises because IBM considers the potential for integrity impact (I:H) in addition to confidentiality impact (C:H), whereas NIST’s assessment currently only factors in the confidentiality impact. The EPSS score is 0.11%, indicating a low probability of exploitation in the next 30 days.
The vulnerability was published on August 13, 2026. The vendor, IBM Corporation, has released fixes in versions 5.2.3.9 or higher and 6.0.1.1 or higher. Users are strongly advised to upgrade to these patched versions to remediate the risk.

DailyCVE Form:

Platform: IBM Storage Scale
Version: 5.2.3.0-5.2.3.8, 6.0.0.0-6.0.1.0
Vulnerability: Credential Logging
Severity: Medium (5.5) / High (7.1)
date: August 13, 2026

Prediction: Patch by August 2026

What Undercode Say:

The vulnerability is straightforward to identify. Administrators should check their GUI log files for the presence of plaintext passwords. The following command can be used to search for potential password disclosures in the default log locations:

Search for common password patterns in GUI logs
grep -iE "password|passwd|pwd|secret|key" /var/log/ibm/storage-scale/gui/.log
Check for the admin password specifically in deployment logs
grep -i "admin password" /var/log/ibm/storage-scale/gui/deploy.log
Review exception logs for potential secret leaks
grep -i "exception" /var/log/ibm/storage-scale/gui/.log | grep -iE "password|secret|token"

To verify the version of IBM Storage Scale in use, run:

Check the installed version
gpfsver

If the version falls within the affected range (5.2.3.0 through `5.2.3.8` or `6.0.0.0` through 6.0.1.0), the system is vulnerable. IBM has confirmed that the issue is fixed in `5.2.3.9` or higher and `6.0.1.1` or higher.

Exploit: (Educational Purposes!)

Exploitation of this vulnerability does not require complex attack vectors. An attacker with local access to the system or the ability to read the log files where the GUI writes its output can retrieve the administrative password. The attack complexity is low, and no user interaction is required.

A typical exploitation scenario involves:

  1. Gaining read access to the log directory of the IBM Storage Scale Management GUI.
  2. Parsing the log files, specifically those generated during system deployment or upgrade operations.
  3. Extracting the plaintext administrative password from the log entries.
  4. Using the compromised credentials to gain unauthorized administrative access to the Storage Scale system.
    The following is a conceptual example of how an attacker might extract the password:

    Attacker extracts the admin password from a captured log file
    cat /path/to/gui_deploy.log | grep "Admin password:" | awk '{print $NF}'
    

Protection:

The primary and most effective protection against CVE-2026-19483 is to apply the vendor-supplied patches. IBM has fixed this vulnerability in versions 5.2.3.9 and 6.0.1.1. Upgrading to these or later versions eliminates the insecure logging of sensitive information.
Until the patch can be applied, administrators should implement strict access controls on the log directories to prevent unauthorized read access. The log files should be monitored for any suspicious access patterns, and existing logs should be audited to ensure no credentials have been inadvertently exposed.

Impact:

Successful exploitation of CVE-2026-19483 can lead to the disclosure of sensitive administrative credentials. An attacker who obtains the administrator password can gain unauthorized access to the IBM Storage Scale Management GUI. With administrative privileges, the attacker could compromise the confidentiality, integrity, and availability of the storage system and the data it manages. This could result in data breaches, unauthorized data modification, or complete system takeover. The potential for lateral movement within the broader IT infrastructure also exists, as compromised storage systems often serve as critical data repositories for other enterprise applications.

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Sources:

Reported By: nvd.nist.gov
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