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Vulnerability record · public intelligence
CVE-2026-58499
HIGH

EverOS: Path traversal in EverOS /api/v1/memory/add via unvalidated sender_id

Published Jul 10, 2026 · Updated Nov 3, 2026

Severity · CVSSHIGH · Not scored
Known exploitationNot listed
EPSS / likelihood0.54%
QFinch risk scoreNot available

Original summary

Normalized public record · Updated Nov 3, 2026

EverOS: Path traversal in EverOS /api/v1/memory/add via unvalidated sender_id

Publisher and source text is retained separately from QFinch interpretation.

QFinch assessment

EverOS versions 1.0.0 and earlier are vulnerable to path traversal in the POST /api/v1/memory/add ingestion endpoint. The per-message sender_id field was not validated as a path-safe identifier (unlike app_id / project_id, which already enforced this). During user-memory extraction, sender_id is used as the owner_id and joined into the filesystem path where the extracted episode is persisted as a Markdown file. A sender_id containing ../ sequences could direct the write outside the configured memory root, allowing an unauthenticated caller to create or overwrite .md files at locations writable by the server process (unauthorized arbitrary file write). The file content is partially attacker-influenced.

Evidence: public source records

Affected products

Affected scope reported by the available public evidence
Affected package, product or rangeFix status
Consult the referenced vendor advisory for affected versions.Consult source advisory

Matching a version is only one part of assessing exposure. QFinch has not assessed your environment on this public page.

Remediation

Apply the vendor-supported fixed release or mitigation, then verify the affected component is no longer reachable.

  1. Confirm the affected product and reachable code path exist in your environment.
  2. Apply the vendor-supported patch or mitigation from the primary advisory.
  3. Rescan the exact deployed revision and retain verification evidence.
Review primary references

Evidence coverage

FIRST-EPSSCVE-LIST-V5NVD-MODIFIED
SSVC priority
MEDIUM
Confidence
Not available
Aliases
None reported

Scores appear only when corresponding evidence exists. Missing data is never interpreted as zero risk.

Sources and record history

  1. Patch commit ↗
  2. Source repository ↗
  3. Security advisory ↗

Record history

Published Jul 10, 2026 · Last refreshed Nov 3, 2026