SEPTEMBER 19, 2026
Live Feed
Back to database
Case File

CVE-2026-58499

HIGH · CVSS 8.2 EPSS 0.36% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-10 · Last synced 2026-08-09

CyberRota Analysis

AI-Generated

EverOS versions prior to 1.0.1 are vulnerable to a path traversal attack via the POST /api/v1/memory/add endpoint, where the sender_id field lacks proper validation. This flaw allows unauthenticated users to manipulate the filesystem, potentially creating or overwriting Markdown files outside the designated memory root with attacker-controlled content. Organizations using EverOS should prioritize upgrading to version 1.0.1 to mitigate this high-severity risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-58499
Severity
HIGH
CVSS
8.2
EPSS
0.36%

Original NVD Description

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.