---
id: CVE-2026-63502
title: >-
  Yeti: Path traversal in ExportTask name allows authenticated arbitrary file
  read and write
summary: >-
  Yeti bridges the gap between CTI and DFIR practitioners by providing a
  Forensics Intelligence platform and pipeline. Prior to 2.5.1, YETI derives
  ExportTask.file_name from the user-controlled task name and passes it to
  core/clients/file_…
severity: high
cvss: 8.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L'
cvssSource: cna
cwe:
  - CWE-22
vendor: yeti-platform
product: yeti
affected:
  - yeti <= 2.5.0
published: '2026-11-03'
updated: '2026-11-03'
sourceUpdated: '2026-11-03T19:36:06.607Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-63502'
references:
  - url: >-
      https://github.com/yeti-platform/yeti/security/advisories/GHSA-4q3w-w2g5-8wqq
    label: >-
      https://github.com/yeti-platform/yeti/security/advisories/GHSA-4q3w-w2g5-8wqq
  - url: 'https://github.com/yeti-platform/yeti/pull/1280'
    label: 'https://github.com/yeti-platform/yeti/pull/1280'
  - url: >-
      https://github.com/yeti-platform/yeti/commit/bfd7c2424dc05dea2d46b5b106b5071f959d5d5a
    label: >-
      https://github.com/yeti-platform/yeti/commit/bfd7c2424dc05dea2d46b5b106b5071f959d5d5a
  - url: 'https://github.com/yeti-platform/yeti/releases/tag/2.5.1'
    label: 'https://github.com/yeti-platform/yeti/releases/tag/2.5.1'
tags:
  - cve.org
epss: 0.00412
epssPercentile: 0.35672
ingestedAt: '2026-11-05T20:33:06.398Z'
---

## Overview

Yeti bridges the gap between CTI and DFIR practitioners by providing a Forensics Intelligence platform and pipeline. Prior to 2.5.1, YETI derives ExportTask.file_name from the user-controlled task name and passes it to core/clients/file_storage/classes/local_storage.py without sanitizing traversal sequences or enforcing path confinement. A low-privileged authenticated user using the default local storage backend can call POST /api/v2/tasks/export/new with a traversal name and use ExportTask.file_contents through GET /api/v2/tasks/export/{export_id}/content to read files accessible to the YETI service account. Running ExportTask.run() can also write attacker-controlled export output to an attacker-selected writable path. The impact depends on the service account's filesystem permissions, and universal code execution is not established. This issue is fixed in version 2.5.1.

## Affected

- `yeti <= 2.5.0`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.