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CVE-2026-27807

MarkUs: YAML alias (‘billion laughs’) DoS in config upload

CVSS 4.9 MEDIUMEPSS 0.3%CWE-776
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.
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
Productos afectados
MarkUsProject · Markus

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