CVE-2026-59705 in mem0
Summary
by MITRE • 07/08/2026
mem0's openmemory/api component contains an unauthenticated access vulnerability that allows unauthenticated attackers to read, write, and delete arbitrary user memories by accessing API routers registered without authentication middleware. Attackers can supply arbitrary user_id parameters or directly access memory retrieval endpoints to expose private memory content, or invoke pause endpoints with global_pause=true to cause denial-of-service across all users.
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Analysis
by VulDB Data Team • 07/08/2026
The vulnerability in mem0's openmemory/api component represents a critical security flaw that undermines the integrity and confidentiality of user data through unauthenticated API access. This issue stems from the absence of proper authentication middleware on several API routers, creating pathways for malicious actors to exploit without any credential requirements. The flaw allows attackers to manipulate user memories through direct API endpoint manipulation, enabling them to read, write, and delete arbitrary user data while bypassing normal access controls. The vulnerability specifically manifests when attackers supply arbitrary user_id parameters or directly access memory retrieval endpoints, which exposes private memory content that should remain protected from unauthorized access.
The technical implementation of this vulnerability aligns with common authentication bypass patterns found in web applications where API endpoints fail to properly validate user credentials before executing sensitive operations. This type of flaw typically occurs when developers assume that certain routes are inherently secure or when authentication middleware is selectively applied to only some API endpoints while leaving others exposed. The impact extends beyond simple data exposure, as attackers can also invoke pause endpoints with global_pause=true parameter, creating a denial-of-service condition that affects all users within the system. This dual nature of the vulnerability provides both data theft capabilities and system disruption potential, making it particularly dangerous from an operational security perspective.
From a threat modeling standpoint, this vulnerability maps directly to several attack patterns documented in the MITRE ATT&CK framework, specifically targeting techniques related to credential access and privilege escalation through unauthenticated API manipulation. The flaw also corresponds to CWE-287, which addresses improper authentication issues in software systems, and CWE-352, covering cross-site request forgery vulnerabilities that can be exploited when authentication is bypassed. Organizations using mem0's openmemory/api component face significant risk of unauthorized data access, potential data loss, and system availability disruption. The attack surface is particularly concerning because it allows for both read and write operations, meaning attackers could not only steal sensitive information but also modify or delete user memories, potentially leading to data corruption or complete information loss.
The operational impact of this vulnerability extends beyond immediate security concerns to include potential regulatory compliance violations and reputational damage. Organizations deploying systems with such vulnerabilities may face penalties under data protection regulations like gdpr or ccpa if user data is compromised through unauthorized access. Mitigation strategies should focus on implementing comprehensive authentication middleware across all API endpoints, establishing proper access control mechanisms, and conducting regular security assessments to identify unauthenticated routes. Additionally, organizations should implement rate limiting and monitoring for unusual API activity patterns that could indicate exploitation attempts. The fix requires ensuring that all memory-related API endpoints enforce proper user authentication and authorization checks before executing any read, write, or delete operations, while also implementing proper input validation to prevent parameter manipulation attacks.