Vulnerability · Published Nov 3, 2026 · Assigned by GitHub_M
CVE-2026-63502Yeti: Path traversal in ExportTask name allows authenticated arbitrary file read and write
High 8.3
In plain English
A high-severity path traversal in yeti from yeti-platform. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 36% of all known vulnerabilities).
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| yeti-platform | yeti | <= 2.5.0 |
Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
References
- https://github.com/yeti-platform/yeti/security/advisories/GHSA-4q3w-w2g5-8wqq x_refsource_CONFIRM
- https://github.com/yeti-platform/yeti/pull/1280 x_refsource_MISC
- https://github.com/yeti-platform/yeti/commit/bfd7c2424dc05dea2d46b5b106b5071f959d5d5a x_refsource_MISC
- https://github.com/yeti-platform/yeti/releases/tag/2.5.1 x_refsource_MISC