CVE-2026-58499

CVE-2026-58499 · Path traversal in EverOS /api/v1/memory/add via unvalidated sender_id

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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.

CVSS 8.2 · High · EPSS 0.5% · Fix available

Published

2026-07-10T20:53:24.196Z

Updated

2026-07-13T16:18:18.609Z

Stack: python

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