{"id":"CVE-2026-58499","aliases":["GHSA-c795-2g9c-j48m"],"url":"https://o3.security/vulnerability/CVE-2026-58499","summary":"Path traversal in EverOS /api/v1/memory/add via unvalidated sender_id","details":"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.","published":"2026-07-10T20:53:24.196Z","modified":"2026-08-12T03:51:27.127545256Z","cvss":{"score":8.2,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L"},"epss":{"score":0.00537,"percentile":0.43642,"asOf":"2026-09-12"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"PyPI","name":"everos","fixedVersion":"1.0.1"}],"fix":{"url":"https://github.com/EverMind-AI/EverOS/commit/a10cdcd197747f371b7879a32c2cc3f77471e9c2","label":"EverMind-AI/EverOS@a10cdcd"},"references":[{"type":"WEB","url":"https://github.com/EverMind-AI/EverOS/releases/tag/v1.0.1"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/58xxx/CVE-2026-58499.json"},{"type":"ADVISORY","url":"https://github.com/EverMind-AI/EverOS/security/advisories/GHSA-c795-2g9c-j48m"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-58499"},{"type":"FIX","url":"https://github.com/EverMind-AI/EverOS/commit/a10cdcd197747f371b7879a32c2cc3f77471e9c2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-12T03:51:27.127545256Z"}}