CVE-2026-25057

CVE-2026-25057 MarkUs is a web application for grading student assignments. Summary MarkUs assignment configuration ZIP uploads are vulnerable to path traversal Zip Slip, allowing arbitrary file write and enabling remote code execution. Details Archive entry names are used to construct filesystem...

CVE-2026-25962

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs currently extracts zip files without any size or entry-count limits. For example, instructors can upload a zip file to provide an assignment configuration; students can upload a zip...

CVE-2026-27807

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 patch...

CVE-2026-28405

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.1, the courses//assignments//submissions/htmlcontent route reads the contents of a student-submitted file and renders them without sanitization. This issue has been patched in version 2.9.1...

CVE-2026-27807

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 patch...

CVE-2026-25962

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs currently extracts zip files without any size or entry-count limits. For example, instructors can upload a zip file to provide an assignment configuration; students can upload a zip...

CVE-2026-25962 MarkUs: Zip bomb in config upload enables DoS

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs currently extracts zip files without any size or entry-count limits. For example, instructors can upload a zip file to provide an assignment configuration; students can upload a zip...

CVE-2026-25962

MarkUs (web application for student submissions and grading) is vulnerable prior to version 2.9.4 due to zip extraction without size or entry-count limits. This can allow a DoS via crafted zip uploads (e.g., for configuration or submissions). The issue is patched in version 2.9.4. If exploiting, ...

CVE-2026-25962 MarkUs: Zip bomb in config upload enables DoS

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs currently extracts zip files without any size or entry-count limits. For example, instructors can upload a zip file to provide an assignment configuration; students can upload a zip...

EUVD-2026-9968

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 patch...

CVE-2026-27807

MarkUs (web app for assignment submission/grading) is affected by CVE-2026-27807 due to YAML files parsed with aliases enabled, enabling a billion‑laughs style DoS. The issue affects configurations uploaded prior to v2.9.4, where YAML parsing could be abused to exhaust resources. The CVSS vector ...

CVE-2026-27807 MarkUs: YAML alias (‘billion laughs’) DoS in config upload

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 patch...

CVE-2026-27807 MarkUs: YAML alias (‘billion laughs’) DoS in config upload

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 patch...

CVE-2026-27807

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 patch...

CVE-2026-25962: Improper Handling of Highly Compressed Data (Data Amplification)

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.4, MarkUs currently extracts zip files without any size or entry-count limits. For example, instructors can upload a zip file to provide an assignment configuration; students can upload a zip...

MarkUs 安全漏洞

MarkUs is an open-source Ruby on Rails and React web application used for submitting and grading student assignments. Versions of MarkUs prior to 2.9.4 contained a security vulnerability. This vulnerability stemmed from allowing course instructors to upload YAML files to create or update entities...

CVE-2026-27807: Improper Restriction of Recursive Entity References in DTDs

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 patch...

MarkUs 安全漏洞

MarkUs is an open-source Ruby on Rails and React web application used for submitting and grading student assignments. Versions of MarkUs prior to 2.9.4 contained a security vulnerability due to the lack of size or item quantity limits when extracting zip files...

PT-2026-23628

Name of the Vulnerable Software and Affected Versions MarkUs versions prior to 2.9.4 Description MarkUs is a web application used for submitting and grading student assignments. Versions of MarkUs before 2.9.4 allow course instructors to upload YAML files to create or update entities like...

CVE-2026-28405

MarkUs is a web application for the submission and grading of student assignments. Prior to version 2.9.1, the courses//assignments//submissions/htmlcontent route reads the contents of a student-submitted file and renders them without sanitization. This issue has been patched in version 2.9.1...