{"id":"CVE-2025-48879","state":"PUBLISHED","title":"OctoPrint Vulnerable to Denial of Service through malformed HTTP request","description":"OctoPrint versions up until and including 1.11.1 contain a vulnerability that allows any unauthenticated attacker to send a manipulated broken multipart/form-data request to OctoPrint and through that make the web server component become unresponsive. The issue can be triggered by a broken multipart/form-data request lacking an end boundary to any of OctoPrint's endpoints implemented through the octoprint.server.util.tornado.UploadStorageFallbackHandler request handler. The request handler will get stuck in an endless busy loop, looking for a part of the request that will never come. As Tornado is single-threaded, that will effectively block the whole web server. The vulnerability has been patched in version 1.11.2.","publishedAt":"2025-06-10T15:23:54.150Z","updatedAt":"2025-06-10T15:57:42.371Z","severity":{"score":6.5,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["OctoPrint OctoPrint"],"affected":[{"vendor":"OctoPrint","product":"OctoPrint","versions":[{"version":"< 1.11.2","status":"affected"}]}],"references":["https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-9wj4-8h85-pgrw","https://github.com/OctoPrint/OctoPrint/commit/c9c35c17bd820f19c6b12e6c0359fc0cfdd0c1ec"],"weaknesses":["CWE-140","CWE-835"],"ingestedAt":"2026-10-29T20:09:23.771Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2025/48xxx/CVE-2025-48879.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2025-48879","state":"PUBLISHED","datePublished":"2025-06-10T15:23:54.150Z","dateUpdated":"2025-06-10T15:57:42.371Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2025-05-27T20:14:34.296Z"},"containers":{"cna":{"title":"OctoPrint Vulnerable to Denial of Service through malformed HTTP request","descriptions":[{"lang":"en","value":"OctoPrint versions up until and including 1.11.1 contain a vulnerability that allows any unauthenticated attacker to send a manipulated broken multipart/form-data request to OctoPrint and through that make the web server component become unresponsive. The issue can be triggered by a broken multipart/form-data request lacking an end boundary to any of OctoPrint's endpoints implemented through the octoprint.server.util.tornado.UploadStorageFallbackHandler request handler. The request handler will get stuck in an endless busy loop, looking for a part of the request that will never come. As Tornado is single-threaded, that will effectively block the whole web server. The vulnerability has been patched in version 1.11.2."}],"affected":[{"vendor":"OctoPrint","product":"OctoPrint","versions":[{"version":"< 1.11.2","status":"affected"}]}],"references":[{"url":"https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-9wj4-8h85-pgrw","name":"https://github.com/OctoPrint/OctoPrint/security/advisories/GHSA-9wj4-8h85-pgrw","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/OctoPrint/OctoPrint/commit/c9c35c17bd820f19c6b12e6c0359fc0cfdd0c1ec","name":"https://github.com/OctoPrint/OctoPrint/commit/c9c35c17bd820f19c6b12e6c0359fc0cfdd0c1ec","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-140","lang":"en","description":"CWE-140: Improper Neutralization of Delimiters","type":"CWE"}]},{"descriptions":[{"cweId":"CWE-835","lang":"en","description":"CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2025-06-10T15:23:54.150Z"},"source":{"advisory":"GHSA-9wj4-8h85-pgrw","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2025-06-10T15:57:28.162115Z","id":"CVE-2025-48879","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":"2025-06-10T15:57:42.371Z"}}]}}}