CVE-2026-5224: Cryptosim Information Disclosure Vulnerability

CVE-2026-5224 Overview

CVE-2026-5224 is a cleartext storage of sensitive information vulnerability [CWE-312] affecting Kriptok Crypto and Information Technologies Industry Trade Inc.'s Cryptosim product. The flaw allows adjacent network attackers with low privileges to retrieve embedded sensitive data stored without encryption. All Cryptosim versions before 3.1.0.229 are affected.

The vulnerability requires no user interaction and can be exploited from an adjacent network position. Successful exploitation results in confidentiality loss without impacting integrity or availability. The Turkish national cybersecurity center (Siber Güvenlik) issued the coordinated advisory tracking this issue.

Critical Impact
Adjacent network attackers with valid low-privilege access can extract embedded sensitive information from Cryptosim installations running versions prior to 3.1.0.229.

Affected Products

Kriptok Cryptosim versions before 3.1.0.229
Deployments where sensitive data is embedded in application storage
Environments accessible via adjacent network segments

Discovery Timeline

2026-08-18 - CVE-2026-5224 published to NVD
2026-08-18 - Last updated in NVD database

Technical Details for CVE-2026-5224

Vulnerability Analysis

Cryptosim stores sensitive information in cleartext within the application, exposing embedded data to any actor able to reach the storage layer. The weakness maps to [CWE-312], which covers cleartext storage of sensitive information at rest.

An attacker positioned on an adjacent network with valid low-privilege credentials can access the storage location and read the embedded data directly. Because the data is not encrypted, no cryptographic key extraction or protocol attack is required. The impact is limited to confidentiality; the vulnerability does not enable modification or disruption of the target system.

Cryptosim is a cryptographic simulation and training platform, so the exposed material may include configuration secrets, credentials, or algorithm parameters embedded in the product distribution.

Root Cause

The root cause is the absence of encryption for sensitive values persisted by Cryptosim. Data that should be protected at rest is written and stored in a form readable by anyone with local or adjacent access to the storage medium. Vendors typically remediate CWE-312 by encrypting sensitive fields, moving secrets to protected key stores, or removing embedded secrets from shipped artifacts.

Attack Vector

Exploitation requires network adjacency, such as the same broadcast domain or VLAN, plus authenticated low-privilege access to Cryptosim resources. The attacker enumerates the storage location housing embedded sensitive data and reads the cleartext content. No specialized tooling is required beyond standard file or protocol clients able to reach the affected component. See the Siber Güvenlik Security Advisory for vendor-provided technical context.

No verified proof-of-concept code is available for CVE-2026-5224.
Refer to the Siber Guvenlik advisory for vendor technical details.

Detection Methods for CVE-2026-5224

Indicators of Compromise

Unexpected read access to Cryptosim data files or configuration stores from low-privilege accounts
Adjacent-network sessions to Cryptosim hosts originating from unmanaged or unexpected endpoints
File access patterns targeting storage paths that contain embedded credentials or secrets

Detection Strategies

Inventory Cryptosim installations and identify any running versions prior to 3.1.0.229
Monitor authentication logs for low-privilege accounts accessing sensitive Cryptosim resources
Correlate file access telemetry on Cryptosim hosts with expected administrative activity

Monitoring Recommendations

Enable file access auditing on Cryptosim installation and data directories
Log and review adjacent-network connections to Cryptosim hosts, focusing on non-administrative sources
Alert on cleartext transmission or storage patterns identified by data loss prevention controls

How to Mitigate CVE-2026-5224

Immediate Actions Required

Upgrade Cryptosim to version 3.1.0.229 or later on all affected hosts
Rotate any credentials, keys, or secrets that may have been embedded in prior Cryptosim versions
Restrict adjacent-network access to Cryptosim hosts using network segmentation and firewall rules
Review low-privilege account assignments and remove access from users who do not require it

Patch Information

Kriptok addresses this issue in Cryptosim version 3.1.0.229. Administrators should apply the vendor-provided update as the primary remediation. Refer to the Siber Güvenlik Security Advisory for vendor guidance and release information.

Workarounds

Isolate Cryptosim systems on dedicated VLANs with strict access control lists until patching is complete
Enforce least-privilege access to Cryptosim storage locations at the operating system level
Apply full-disk or filesystem-level encryption to reduce exposure of at-rest data on Cryptosim hosts

bash

# Example: restrict access to Cryptosim data directory (Linux)
chown -R cryptosim:cryptosim /opt/cryptosim/data
chmod -R 700 /opt/cryptosim/data