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.
References
Configurations
No configuration.
History
12 Jun 2025, 16:06
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10 Jun 2025, 16:15
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Information
Published : 2025-06-10 16:15
Updated : 2025-06-12 16:06
NVD link : CVE-2025-48879
Mitre link : CVE-2025-48879
CVE.ORG link : CVE-2025-48879
JSON object : View
Products Affected
No product.