CVE-2026-27807

MEDIUM

4.9

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.

CVE Details

CVSS v3.1 Score4.9

SeverityMEDIUM

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

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredHIGH

User InteractionNONE

Published3/6/2026

Last Modified3/12/2026

Sourcenvd

Honeypot Sightings0

Affected Products

markusproject:markus

Weaknesses (CWE)

CWE-776

References

https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4(security-advisories@github.com)

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

IOC Correlations

No correlations recorded

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