CVE-2026-50772 in Cognitive Search
Summary
by MITRE • 08/17/2026
An issue in Squirro Cognitive Search < 3.14.2 allows a remote attacker to execute arbitrary code via a crafted payload to the password reset function.
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Analysis
by VulDB Data Team • 08/17/2026
The vulnerability identified within Squirro Cognitive Search versions prior to 3.14.2 represents a critical security flaw located in the application's authentication and identity management subsystem, specifically targeting the password reset functionality. This component is designed to facilitate user account recovery by allowing individuals who have forgotten their credentials to establish new access keys through an email-based verification process. The core technical deficiency lies in how the system processes requests associated with this workflow, where insufficient validation or sanitization of input parameters allows a remote attacker to inject malicious code into the execution context. By crafting specific payloads that exploit weaknesses in the parsing logic of the password reset endpoint, an adversary can bypass intended security controls and achieve arbitrary command execution on the underlying server infrastructure. This type of flaw is characteristic of improper input handling where the application fails to distinguish between legitimate user data and executable commands, effectively treating injected strings as part of the system's operational script or configuration file.
From a technical perspective, this vulnerability aligns with CWE-94, which describes Improper Control of Generation of Code (Code Injection), and potentially CWE-20 if it involves improper input validation leading to injection attacks such as OS command injection. The attack vector is remote, meaning the exploitation does not require physical access or prior authentication credentials for a standard user account, although some implementations might require knowledge of valid email addresses associated with accounts on the system. This significantly lowers the barrier for entry for attackers conducting automated scanning campaigns against exposed instances of Squirro Cognitive Search. Once exploited, the ability to execute arbitrary code grants the attacker full control over the application process context, which typically runs with elevated privileges depending on how the service is deployed. This can lead to a complete compromise of the host system, including access to sensitive data stored within the search index, modification of configuration files, and potential pivoting into internal network segments if the server has broader connectivity permissions.
The operational impact of this vulnerability extends beyond immediate code execution to include severe risks to data integrity and confidentiality. An attacker leveraging this flaw can exfiltrate proprietary information indexed by Squirro, manipulate search results to mislead users or hide malicious content, and install persistent backdoors for long-term access. In enterprise environments where cognitive search platforms are integrated with other business-critical systems via APIs or shared databases, the compromise of one node can facilitate lateral movement across the infrastructure. This scenario is consistent with MITRE ATT&CK techniques such as T1059 Command and Scripting Interpreter, which covers the use of system utilities to execute commands, and potentially T1136 Create Account if the attacker creates new administrative users for persistence. The lack of immediate detection mechanisms in default configurations further exacerbates the risk, allowing adversaries to operate undetected while establishing a foothold within the network perimeter.
Mitigation strategies must prioritize both immediate remediation and long-term architectural hardening. The most effective solution is to upgrade Squirro Cognitive Search to version 3.14.2 or later, where the vendor has addressed the input validation flaws in the password reset module. Organizations that cannot immediately patch due to operational constraints should implement network-level controls such as web application firewalls configured with rulesets specifically designed to detect and block injection patterns targeting authentication endpoints. Additionally, restricting access to administrative interfaces and API endpoints through IP whitelisting or multi-factor authentication can reduce the attack surface available to remote adversaries. It is also critical to ensure that the service runs under a least-privilege account configuration, limiting the potential damage if an exploitation attempt succeeds. Regular security assessments and penetration testing focused on identity management workflows will help identify similar vulnerabilities in other components of the application stack before they are exploited by malicious actors.