EverMind-AI EverOS prior 1.0.1 Memory Ingestion /api/v1/memory/add sender_id path traversal

Summaryinfo

A vulnerability marked as very critical has been reported in EverMind-AI EverOS. The affected element is the function Add of the file /api/v1/memory/add of the component Memory Ingestion Handler. This manipulation of the argument sender_id causes path traversal. This vulnerability is tracked as CVE-2026-58499. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in EverMind-AI EverOS. It has been declared as very critical. Affected by this vulnerability is the function add of the file /api/v1/memory/add of the component Memory Ingestion Handler. The manipulation of the argument sender_id with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

EverOS is a memory runtime for agents. Prior to 1.0.1, EverOS is vulnerable to path traversal in the POST /api/v1/memory/add ingestion endpoint because the per-message sender_id field was not validated as a path-safe identifier, unlike app_id and project_id. During user-memory extraction, sender_id is used as owner_id and joined into the filesystem path where the extracted episode is persisted as a Markdown file, so a sender_id containing ../ sequences could direct writes outside the configured memory root and allow an unauthenticated caller to create or overwrite .md files at locations writable by the server process with partially attacker-influenced content. This issue is fixed in version 1.0.1.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-58499 since 06/30/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/10/2026). The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 1.0.1 eliminates this vulnerability.

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Productinfo

Type

• Artificial Intelligence Software

Vendor

• EverMind-AI

Name

• EverOS

Website

• Product: https://github.com/EverMind-AI/EverOS/

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