Dell ObjectScale, Information Disclosure via Log File, CVE-2026-59911 (Medium) -DC-Aug2026-1637

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CVE-2026-59911 is a medium-severity vulnerability identified in Dell ObjectScale, an object storage platform. The flaw resides in the `svc_tools` component, which is responsible for log management and system diagnostics. Specifically, the application fails to properly sanitize sensitive data before writing it to log files, a weakness categorized under CWE-532: Insertion of Sensitive Information into Log File. This means that under certain operational conditions—such as debugging, error handling, or routine system logging—confidential information like credentials, API keys, internal paths, or configuration secrets can be inadvertently recorded in plaintext within system logs.
The vulnerability is exploitable only by an attacker with local access and low-privileged user credentials on the affected system. The attack complexity is considered low, meaning that minimal technical skill is required to read and extract the exposed log data. Importantly, no user interaction is needed for the exploit to succeed. The confidentiality impact is high because the disclosed information can provide attackers with a direct pathway to escalate privileges, move laterally within the infrastructure, or compromise other integrated services. However, there is no impact on integrity or availability—the vulnerability does not allow data modification or system disruption. The CVSS v3.1 base score assigned by Dell is 5.5 (Medium) with the vector string AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N. The vulnerability was reserved on July 7, 2026, and publicly published on August 17, 2026. As of the publication date, no active exploits have been observed in the wild, and the vulnerability is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

DailyCVE Form:

Platform: Dell ObjectScale
Version: <4.3.0.1
Vulnerability: Log Sensitive Info
Severity: Medium (5.5)
date: 08/17/2026

Prediction: 08/24/2026

What Undercode Say:

The vulnerability manifests when `svc_tools` writes operational data to logs without adequate filtering. Below are analytical commands to inspect log files for potential sensitive data exposure.

Check for sensitive keywords in ObjectScale logs:

grep -E "password|secret|key|token|credential" /var/log/objectscale/.log

Identify log files with world-readable permissions:

find /var/log/objectscale/ -type f -perm -o+r -exec ls -la {} \;

Monitor real-time log writes for anomalous patterns:

tail -f /var/log/objectscale/svc_tools.log | grep -i "error|debug|trace"

Examine `svc_tools` specific log entries for structured data leakage:

cat /var/log/objectscale/svc_tools.log | jq 'select(.level == "DEBUG" or .level == "TRACE")'

Exploit: (Educational Purposes!)

A low-privileged local attacker can exploit this flaw by reading the log files where sensitive data is stored. The attacker does not need to inject malicious code; they simply need to access the log files on the filesystem.
1. Access the log directory: Navigate to the default ObjectScale logging location.

cd /var/log/objectscale/

2. Read the `svc_tools` log file: Use standard file reading commands to view the contents.

cat svc_tools.log

3. Extract sensitive patterns: Pipe the output to search for common credential formats.

grep -E "Bearer [a-zA-Z0-9_-]+.[a-zA-Z0-9_-]+.[a-zA-Z0-9_-]+" svc_tools.log
grep -E "AWS_ACCESS_KEY_ID|AWS_SECRET_ACCESS_KEY" svc_tools.log
grep -E "password=|passwd=" svc_tools.log

The attacker can then use any extracted credentials to authenticate as a higher-privileged user or access restricted resources.

Protection:

Upgrade ObjectScale: Apply the Dell 2026‑328 security update to upgrade to version 4.3.0.1 or later.
Restrict Log Access: Revoke or limit local accounts from accessing the `svc_tools` directory and its log files.
Audit Logs: Review existing log files for accidental leakage and securely purge or archive sensitive records.
Monitor Logging Behavior: Implement monitoring to detect anomalous writes that could indicate exploitation.

Impact:

Successful exploitation leads to the disclosure of sensitive information (credentials, tokens, internal paths) stored in plaintext logs. This undermines system confidentiality and can serve as a stepping stone for privilege escalation or lateral movement within the environment. While the vulnerability itself does not grant direct system takeover, the leaked data significantly increases the attack surface and risk of subsequent compromise.

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Sources:

Reported By: nvd.nist.gov
Extra Source Hub:
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