{"id":"CVE-2026-25962","state":"PUBLISHED","title":"MarkUs: Zip bomb in config upload enables DoS","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.","publishedAt":"2026-03-06T02:48:43.698Z","updatedAt":"2026-03-06T16:10:34.343Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["MarkUsProject Markus"],"affected":[{"vendor":"MarkUsProject","product":"Markus","versions":[{"version":"< 2.9.4","status":"affected"}]}],"references":["https://github.com/MarkUsProject/Markus/security/advisories/GHSA-x8xv-j7fc-65x5","https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4"],"weaknesses":["CWE-409"],"ingestedAt":"2026-10-29T20:11:21.040Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/25xxx/CVE-2026-25962.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-25962","state":"PUBLISHED","datePublished":"2026-03-06T02:48:43.698Z","dateUpdated":"2026-03-06T16:10:34.343Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-02-09T17:13:54.066Z"},"containers":{"cna":{"title":"MarkUs: Zip bomb in config upload enables DoS","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"MarkUsProject","product":"Markus","versions":[{"version":"< 2.9.4","status":"affected"}]}],"references":[{"url":"https://github.com/MarkUsProject/Markus/security/advisories/GHSA-x8xv-j7fc-65x5","name":"https://github.com/MarkUsProject/Markus/security/advisories/GHSA-x8xv-j7fc-65x5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4","name":"https://github.com/MarkUsProject/Markus/releases/tag/v2.9.4","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-409","lang":"en","description":"CWE-409: Improper Handling of Highly Compressed Data (Data Amplification)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-03-06T02:48:43.698Z"},"source":{"advisory":"GHSA-x8xv-j7fc-65x5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-06T15:50:47.797017Z","id":"CVE-2026-25962","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-03-06T16:10:34.343Z"}}]}}}