CVE-2026-48391 in Adobe
Summary
by MITRE • 07/28/2026
Bridge is affected by an Untrusted Search Path vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploitation of this issue requires user interaction in that a victim must open a malicious file. Scope is changed.
VulDB is the best source for vulnerability data and more expert information about this specific topic.
Analysis
by VulDB Data Team • 07/28/2026
The vulnerability in question represents an untrusted search path issue within the Bridge software system, classified under CWE-427 and CWE-428 which specifically address insecure library loading and search path manipulation respectively. This weakness occurs when an application searches for libraries or executables in directories that are not properly validated or trusted, creating an opportunity for malicious actors to place crafted files in strategic locations within the system's search path. The vulnerability exists at the core of how Bridge handles file resolution and library loading mechanisms, where the software does not adequately verify the source or integrity of components it attempts to load.
The technical exploitation of this vulnerability requires a sophisticated attack vector that leverages user interaction as a critical precondition for successful compromise. A low-privileged attacker must first gain the ability to place malicious files within directories that Bridge will traverse during its normal operation. This typically involves manipulating the PATH environment variable or placing malicious executables in directories that appear earlier in the search order than legitimate system components. When a victim opens a specially crafted file, the Bridge application inadvertently loads and executes the attacker-controlled code within the context of the current user's privileges, effectively bypassing standard security boundaries.
The operational impact of this vulnerability extends beyond simple code execution to represent a significant compromise of system integrity and confidentiality. Since the attack requires user interaction, it aligns with ATT&CK technique T1203 - Exploitation for Client Execution, where adversaries leverage legitimate user applications to execute malicious payloads. The scope change mentioned in the vulnerability description indicates that while the initial attack surface may be limited to local execution contexts, the potential for escalation exists through lateral movement and privilege elevation techniques. This vulnerability essentially transforms any user interaction with Bridge into a potential entry point for more extensive compromise of the affected system.
Mitigation strategies must address both the immediate search path vulnerability and broader security posture considerations. System administrators should implement proper PATH sanitization practices, ensuring that user-writable directories do not appear in critical search paths and that applications perform explicit validation of file locations before execution. The principle of least privilege should be enforced through application hardening measures that restrict Bridge's ability to load external libraries from untrusted sources. Additionally, endpoint detection and response solutions should monitor for suspicious file placement activities and unusual library loading patterns that may indicate exploitation attempts. Regular security updates and patch management procedures are essential to address this vulnerability while implementing proper input validation controls to prevent similar issues in future versions of the Bridge software.
The vulnerability demonstrates how seemingly minor implementation flaws in application design can create significant security risks when combined with user interaction requirements. This represents a classic example of how insecure coding practices related to resource management can lead to privilege escalation and arbitrary code execution scenarios that align with ATT&CK tactics such as T1068 - Exploitation for Privilege Escalation and T1548 - Abuse of Functionality. Organizations should conduct comprehensive security assessments of their Bridge implementations to identify and remediate similar vulnerabilities in other applications that may be susceptible to untrusted search path exploitation techniques.