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Vulnerability Details :

CVE-2026-25057

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-09 Feb, 2026 | 19:16
Updated At-10 Feb, 2026 | 16:00
Rejected At-
Credits

Zip Slip in MarkUs config upload allowing RCE

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:09 Feb, 2026 | 19:16
Updated At:10 Feb, 2026 | 16:00
Rejected At:
▼CVE Numbering Authority (CNA)
Zip Slip in MarkUs config upload allowing RCE

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.

Affected Products
Vendor
MarkUsProject
Product
Markus
Versions
Affected
  • < 2.9.1
Problem Types
TypeCWE IDDescription
CWECWE-23CWE-23: Relative Path Traversal
Type: CWE
CWE ID: CWE-23
Description: CWE-23: Relative Path Traversal
Metrics
VersionBase scoreBase severityVector
3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252h
x_refsource_CONFIRM
https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7
x_refsource_MISC
https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
x_refsource_MISC
Hyperlink: https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252h
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7
Resource:
x_refsource_MISC
Hyperlink: https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:09 Feb, 2026 | 20:15
Updated At:19 Feb, 2026 | 20:25

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary3.19.1CRITICAL
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 9.1
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CPE Matches
markusproject
markusproject
>>markus>>Versions before 2.9.1(exclusive)
cpe:2.3:a:markusproject:markus:*:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
CWE-23Primarysecurity-advisories@github.com
CWE ID: CWE-23
Type: Primary
Source: security-advisories@github.com
Evaluator Description
Evaluator Impact

Evaluator Solution

Vendor Statements
References
HyperlinkSourceResource
https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7security-advisories@github.com
Patch
https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1security-advisories@github.com
Product
Release Notes
https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252hsecurity-advisories@github.com
Vendor Advisory
Hyperlink: https://github.com/MarkUsProject/Markus/commit/0ca002a1f0071c7a00dbb2ed34fede57323c5dc7
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/MarkUsProject/Markus/releases/tag/v2.9.1
Source: security-advisories@github.com
Resource:
Product
Release Notes
Hyperlink: https://github.com/MarkUsProject/Markus/security/advisories/GHSA-mccg-p332-252h
Source: security-advisories@github.com
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Details not found