CVE-2026-20653 is a medium-severity vulnerability identified in Apple’s iOS, iPadOS, and macOS operating systems. The vulnerability arises from a parsing issue in the handling of directory paths, which could potentially allow an application to gain unauthorized access to sensitive user data. This issue affects multiple versions of the operating systems, notably including iOS 18.7.5, iPadOS 18.7.5, macOS Sequoia 15.7.4, and others.
With a CVSS score of 5.5, this vulnerability is classified as having medium severity. The attack vector is local, requiring the attacker to have physical access to the device, which underscores the need for users to be careful about who has access to their devices. The nature of this vulnerability means that an attacker might exploit it with low complexity and no required privileges, but user interaction is necessary to trigger the exploit.
Risk to organizations includes potential unauthorized access to sensitive information stored on devices, which could lead to data breaches and privacy violations. Organizations should prioritize patching immediately to mitigate this risk, especially given the ease of local access to devices in various environments.
The vulnerability was publicly disclosed on February 11, 2026, and Apple has released patches in the affected versions. Users and administrators are urged to apply the updates to secure their systems and protect user data effectively.
Vulnerability Details
The official description states: "A parsing issue in the handling of directory paths was addressed with improved path validation. An app may be able to access sensitive user data." The vulnerability is classified under CWE-22 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')).
The CVSS version 3.1 vector string for this vulnerability is CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N, indicating a high impact on confidentiality and no impact on integrity or availability.
Technical Analysis
The root cause of CVE-2026-20653 is the inadequate validation of directory paths, which may allow an application to access files outside its intended directory. The attack vector is local, meaning an attacker must have physical access to the device. The attack complexity is low, and no privileges are required, but user interaction is necessary to initiate the attack.
Given that the confidentiality impact is rated as high, sensitive user data can be compromised if the vulnerability is exploited. The integrity and availability impacts are rated as none, which means that while data can be accessed, it cannot be altered or deleted by this vulnerability.
Risk & Impact Analysis
Organizations using affected Apple products face significant risks, particularly those that handle sensitive personal information. The potential for unauthorized access to user data poses a serious threat to user privacy and can lead to compliance issues with data protection regulations.
The exploitation of this vulnerability could have a wide blast radius, especially in environments where devices are not securely managed. Organizations should address this vulnerability in their priority patch cycle, particularly if they operate in sectors with stringent data protection requirements.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability affects the following versions: iOS and iPadOS prior to 18.7.5 and between 26.0 to 26.3, macOS prior to versions 14.8.4, 15.0 to 15.7.4, and between 26.0 to 26.3, as well as visionOS prior to 26.3.
Mitigation & Remediation
Organizations are advised to patch affected systems immediately. The following updates resolve the vulnerability: iOS 18.7.5, iPadOS 18.7.5, macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26.3, and visionOS 26.3. If updates are not possible, consider implementing network controls to limit access to affected devices.
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Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual access patterns and directory traversal attempts. Behavioral anomalies in applications accessing sensitive user data should also be investigated.
AppSecure Threat Intelligence Insight
The long-term significance of CVE-2026-20653 highlights the importance of robust input validation in software development. This vulnerability serves as a reminder for organizations to regularly audit their applications for similar weaknesses.
Security teams should also consider integrating continuous security testing into their development lifecycle to identify vulnerabilities early. For insights into security best practices, refer to our penetration testing methodology guide.
Finally, organizations are encouraged to enhance their security posture through comprehensive security assessments. For tailored solutions, please explore our application security assessment services.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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