{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2026-25962 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-25962 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-25962 is a medium-severity denial of service vulnerability in MarkUsProject Markus, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-25962 and fix it if it is affected.\n\nWhat it is: CVE-2026-25962 is a medium-severity denial of service vulnerability in MarkUsProject Markus, published on 6 Mar 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-25962 in the wild and no public exploit code.\n\nAffected product: MarkUsProject Markus. No package-level version data is available, so check the vendor advisory linked from the reference page.\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-25962/ (Markdown: https://insights.sbomify.com/CVE-2026-25962/index.md)","id":"CVE-2026-25962","markdown":"https://insights.sbomify.com/CVE-2026-25962/index.md","name":"CVE-2026-25962","record":{"aliases":["GHSA-x8xv-j7fc-65x5"],"analysis":{"component_type":"web_application","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"MarkUs grading system","requires_auth":"low_privilege","summary":"Attackers can cause denial of service by uploading malicious zip bombs to the MarkUs web application due to missing extraction limits.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[{"product":"markus","vendor":"markusproject"}],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-409","name":"Improper Handling of Highly Compressed Data (Data Amplification)"}],"description":"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 file for an assignment submission and indicate its contents should be extracted. This issue has been patched in version 2.9.4.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"MarkUs: Zip bomb in config upload enables DoS","id":"CVE-2026-25962","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":0,"n_references":2,"next":{"headline":"Fleet: Authorization Bypass in certificate template batch deletion for team administrators","id":"CVE-2026-25963"},"packages":[],"prev":{"headline":"SumatraPDF Update MITM -\u003e Arbitrary Code Execution","id":"CVE-2026-25961"},"products":["Markus"],"published":"2026-03-06","related":[{"cvss_score":9.1,"headline":"Zip Slip in MarkUs config upload allowing RCE","id":"CVE-2026-25057","kev_date_added":null,"published":"2026-02-09"},{"cvss_score":8,"headline":"MarkUs: Stored XSS in Submission HTML Preview Enables Instructor-Context Actions","id":"CVE-2026-28405","kev_date_added":null,"published":"2026-03-05"},{"cvss_score":7.1,"headline":"MarkUs Arbitrary File Write leading up to remote code execution (student accounts)","id":"CVE-2024-51499","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":7.1,"headline":"Arbitrary File Write leading up to remote code execution (instructor accounts)","id":"CVE-2024-51743","kev_date_added":null,"published":"2024-11-18"},{"cvss_score":6.5,"headline":"MarkUs has a submission-view IDOR exposes all student submissions","id":"CVE-2026-24900","kev_date_added":null,"published":"2026-02-09"},{"cvss_score":5.7,"headline":"MarkUs vulnerable to Path Traversal","id":"CVE-2024-47820","kev_date_added":null,"published":"2024-11-18"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-03-06","vendors":["MarkUsProject"]},"summary":"Attackers can cause denial of service by uploading malicious zip bombs to the MarkUs web application due to missing extraction limits.","url":"https://insights.sbomify.com/CVE-2026-25962/"}