CVE-2026-27807

medium

Description

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs allows course instructors to upload YAML files to create/update various entities (e.g., assignment settings). These YAML files are parsed with aliases enabled. This issue has been patched in version 2.9.4.

References

https://github.com/MarkUsProject/Markus/security/advisories/GHSA-m9rx-85mx-q9h6

https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4

Details

Source: Mitre, NVD

Published: 2026-03-06

Updated: 2026-03-12

Risk Information

CVSS v2

Base Score: 6.1

Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:N/A:C

Severity: Medium

CVSS v3

Base Score: 4.9

Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

Severity: Medium

EPSS

EPSS: 0.00037