Source: python-tornado Version: 6.5.4-1 Severity: important Tags: security upstream X-Debbugs-Cc: [email protected], Debian Security Team <[email protected]>
Hi, The following vulnerability was published for python-tornado. CVE-2026-31958[0]: | Tornado is a Python web framework and asynchronous networking | library. In versions of Tornado prior to 6.5.5, the only limit on | the number of parts in multipart/form-data is the max_body_size | setting (default 100MB). Since parsing occurs synchronously on the | main thread, this creates the possibility of denial-of-service due | to the cost of parsing very large multipart bodies with many parts. | This vulnerability is fixed in 6.5.5. If you fix the vulnerability please also make sure to include the CVE (Common Vulnerabilities & Exposures) id in your changelog entry. For further information see: [0] https://security-tracker.debian.org/tracker/CVE-2026-31958 https://www.cve.org/CVERecord?id=CVE-2026-31958 []1 https://github.com/tornadoweb/tornado/security/advisories/GHSA-qjxf-f2mg-c6mc Please adjust the affected versions in the BTS as needed. Regards, Salvatore
