Vulnerability Details CVE-2025-48879
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 10.0%
CVSS Severity
CVSS v3 Score 6.5
References
Products affected by CVE-2025-48879
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cpe:2.3:a:octoprint:octoprint:-
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cpe:2.3:a:octoprint:octoprint:0.1.0
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cpe:2.3:a:octoprint:octoprint:0.1.1
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cpe:2.3:a:octoprint:octoprint:0.1.2
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cpe:2.3:a:octoprint:octoprint:1.0.0
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cpe:2.3:a:octoprint:octoprint:1.1.0
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cpe:2.3:a:octoprint:octoprint:1.1.1
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cpe:2.3:a:octoprint:octoprint:1.1.2
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cpe:2.3:a:octoprint:octoprint:1.10.0
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cpe:2.3:a:octoprint:octoprint:1.10.1
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cpe:2.3:a:octoprint:octoprint:1.10.2
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cpe:2.3:a:octoprint:octoprint:1.10.3
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cpe:2.3:a:octoprint:octoprint:1.2.0
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cpe:2.3:a:octoprint:octoprint:1.2.1
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cpe:2.3:a:octoprint:octoprint:1.2.10
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cpe:2.3:a:octoprint:octoprint:1.2.11
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cpe:2.3:a:octoprint:octoprint:1.2.12
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cpe:2.3:a:octoprint:octoprint:1.2.13
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cpe:2.3:a:octoprint:octoprint:1.2.14
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cpe:2.3:a:octoprint:octoprint:1.2.15
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cpe:2.3:a:octoprint:octoprint:1.2.16
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cpe:2.3:a:octoprint:octoprint:1.2.17
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cpe:2.3:a:octoprint:octoprint:1.2.18
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cpe:2.3:a:octoprint:octoprint:1.2.2
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cpe:2.3:a:octoprint:octoprint:1.2.3
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cpe:2.3:a:octoprint:octoprint:1.2.4
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cpe:2.3:a:octoprint:octoprint:1.2.5
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cpe:2.3:a:octoprint:octoprint:1.2.6
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cpe:2.3:a:octoprint:octoprint:1.2.7
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cpe:2.3:a:octoprint:octoprint:1.2.8
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cpe:2.3:a:octoprint:octoprint:1.2.9
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cpe:2.3:a:octoprint:octoprint:1.3.0
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cpe:2.3:a:octoprint:octoprint:1.3.1
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cpe:2.3:a:octoprint:octoprint:1.3.10
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cpe:2.3:a:octoprint:octoprint:1.3.11
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cpe:2.3:a:octoprint:octoprint:1.3.12
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cpe:2.3:a:octoprint:octoprint:1.3.2
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cpe:2.3:a:octoprint:octoprint:1.3.3
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cpe:2.3:a:octoprint:octoprint:1.3.4
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cpe:2.3:a:octoprint:octoprint:1.3.5
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cpe:2.3:a:octoprint:octoprint:1.3.6
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cpe:2.3:a:octoprint:octoprint:1.3.7
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cpe:2.3:a:octoprint:octoprint:1.3.8
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cpe:2.3:a:octoprint:octoprint:1.3.9
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cpe:2.3:a:octoprint:octoprint:1.4.0
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cpe:2.3:a:octoprint:octoprint:1.4.1
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cpe:2.3:a:octoprint:octoprint:1.4.2
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cpe:2.3:a:octoprint:octoprint:1.5.0
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cpe:2.3:a:octoprint:octoprint:1.5.1
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cpe:2.3:a:octoprint:octoprint:1.5.2
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cpe:2.3:a:octoprint:octoprint:1.5.3
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cpe:2.3:a:octoprint:octoprint:1.6.0
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cpe:2.3:a:octoprint:octoprint:1.6.1
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cpe:2.3:a:octoprint:octoprint:1.7.0
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cpe:2.3:a:octoprint:octoprint:1.7.1
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cpe:2.3:a:octoprint:octoprint:1.7.2
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cpe:2.3:a:octoprint:octoprint:1.7.3
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cpe:2.3:a:octoprint:octoprint:1.8.0
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cpe:2.3:a:octoprint:octoprint:1.8.1
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cpe:2.3:a:octoprint:octoprint:1.8.2
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cpe:2.3:a:octoprint:octoprint:1.8.3
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cpe:2.3:a:octoprint:octoprint:1.9.3