CVE-2025-48879: OctoPrint Vulnerable to Denial of Service through malformed HTTP request in OctoPrint

June 10, 2025

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. This could be used to effectively run a denial of service attack on the OctoPrint server.

References

github.com/OctoPrint/OctoPrint
github.com/OctoPrint/OctoPrint/commit/c9c35c17bd820f19c6b12e6c0359fc0cfdd0c1ec
github.com/OctoPrint/OctoPrint/security/advisories/GHSA-9wj4-8h85-pgrw
github.com/advisories/GHSA-9wj4-8h85-pgrw
nvd.nist.gov/vuln/detail/CVE-2025-48879

Code Behaviors & Features

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