MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, instructors are able to upload a zip file to create an assignment from an exported configuration (courses/<:course_id>/assignments/upload_config_files). The uploaded zip file entry names are used to create paths to write files to disk without checking these paths. This vulnerability is fixed in 2.9.1.
History

Mon, 09 Feb 2026 19:30:00 +0000

Type Values Removed Values Added
Description MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, instructors are able to upload a zip file to create an assignment from an exported configuration (courses/<:course_id>/assignments/upload_config_files). The uploaded zip file entry names are used to create paths to write files to disk without checking these paths. This vulnerability is fixed in 2.9.1.
Title Zip Slip in MarkUs config upload allowing RCE
Weaknesses CWE-23
References
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-02-09T19:16:55.980Z

Updated: 2026-02-09T19:16:55.980Z

Reserved: 2026-01-28T14:50:47.889Z

Link: CVE-2026-25057

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-02-09T20:15:56.550

Modified: 2026-02-09T20:15:56.550

Link: CVE-2026-25057

cve-icon Redhat

No data.