Privilege Escalation Vulnerability in OpenCryptoki Package
Summary
ALSA-2026:5587: Moderate: opencryptoki security update. Affects opencryptoki versions < 3.22.0-3.el8_10.2. Fixed in 3.22.0-3.el8_10.2. How to fix ↓
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Background
OpenCryptoki is a software implementation of the PKCS#11 API, primarily designed for IBM Cryptocards, including models like IBM 4764 and 4765. It supports various cryptographic hardware and provides a software token implementation for environments without hardware. The package includes essential components such as the Slot Daemon (pkcsslotd) and utilities for managing cryptographic operations. However, a security flaw has been identified that could lead to privilege escalation or data exposure.
Vulnerability Detail
The vulnerability, identified as CVE-2026-23893, arises from a symlink following issue within the OpenCryptoki packages. This flaw allows an attacker to exploit the system by creating symbolic links that can lead to unauthorized access to sensitive data or escalation of privileges. The potential ramifications include unauthorized data exposure and the ability to execute commands with elevated privileges, posing a significant security risk to systems utilizing OpenCryptoki.
How To Fix
Minimum fixed version
3.22.0-3.el8_10.2
This is the first release that contains the fix.
sudo dnf update opencryptokiTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As a temporary workaround, users can restrict access to the affected components and monitor for any suspicious activity until the packages are updated. It is advisable to review system logs regularly and ensure that only authorized users have access to critical cryptographic functions.
Conclusion
The OpenCryptoki package has a critical vulnerability (CVE-2026-23893) that poses risks of privilege escalation and data exposure. Users are urged to update their packages to the latest version to mitigate these risks. For those unable to update immediately, implementing temporary workarounds is recommended.
See every vulnerability recorded for opencryptoki →
FAQ
CVE-2026-23893 is a security vulnerability in the OpenCryptoki package that allows for privilege escalation or data exposure via symlink following.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
If an immediate update is not possible, implement access restrictions and monitor system activity to mitigate potential risks.
The vulnerability can lead to unauthorized data exposure and privilege escalation, allowing attackers to execute commands with elevated privileges.
More information about OpenCryptoki can be found in its official documentation and repositories, which detail its functionalities and usage.
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