CVE-2026-30632 in knowns
Summary
by MITRE • 07/21/2026
Directory traversal vulnerability in knowns-dev/knowns 0.11.4 via crafted folder name value to the create_doc tool.
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Analysis
by VulDB Data Team • 07/21/2026
A directory traversal vulnerability exists in the knowns-dev/knowns application version 0.11.4 through the create_doc tool which allows unauthorized access to files outside the intended directory structure. This vulnerability stems from insufficient input validation when processing folder names, enabling attackers to manipulate file paths and potentially access sensitive system files or directories. The flaw manifests when a malicious user provides a crafted folder name value that contains directory traversal sequences such as ../ or ..\ which bypass normal path validation mechanisms.
The technical implementation of this vulnerability falls under CWE-22 - Improper Limitation of a Pathname to a Restricted Directory, a well-documented weakness in software security practices. When the create_doc tool processes user input without proper sanitization, it fails to validate that the provided folder name remains within the designated application directory boundaries. This allows attackers to exploit the vulnerability by constructing malicious path sequences that traverse upward through the file system hierarchy, potentially accessing configuration files, database credentials, or other sensitive data stored outside the intended document storage areas.
The operational impact of this vulnerability extends beyond simple information disclosure, as it can enable more severe attacks including arbitrary code execution, privilege escalation, and complete system compromise. An attacker who successfully exploits this vulnerability could access application configuration files containing database connection strings, API keys, or other critical credentials. The attack surface is particularly concerning in environments where knowns-dev/knowns operates with elevated privileges or has access to sensitive organizational data repositories.
Security mitigations for this directory traversal vulnerability should include comprehensive input validation and sanitization of all user-supplied folder names before processing. Implementing a whitelist approach that only allows alphanumeric characters, underscores, and hyphens while rejecting any path traversal sequences would effectively prevent exploitation. Additionally, the application should enforce strict directory boundaries using secure coding practices such as validating that all file operations occur within designated directories and implementing proper path normalization techniques. Organizations should also consider applying the principle of least privilege when running the knowns-dev/knowns application to limit the potential damage from successful exploitation attempts.
The vulnerability aligns with several ATT&CK tactics including TA0001 - Initial Access through malicious file upload or manipulation, and TA0002 - Execution via potential command injection if the application executes commands based on user input. Defense in depth strategies should include network monitoring for suspicious path traversal patterns, implementing web application firewalls to detect and block such attacks, and conducting regular security assessments of third-party applications like knowns-dev/knowns to identify similar vulnerabilities before they can be exploited by adversaries.
Organizations using knowns-dev/knowns version 0.11.4 should urgently implement patches or workarounds to address this vulnerability, as directory traversal flaws often provide attackers with a foothold for more sophisticated attacks. The vulnerability represents a critical security risk that could lead to unauthorized data access, system compromise, and potential regulatory compliance violations depending on the nature of the sensitive information stored within the application's document repository.