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Package details: pkg:deb/debian/python-tornado@6.4.2-3
purl pkg:deb/debian/python-tornado@6.4.2-3
Next non-vulnerable version 6.4.2-3+deb13u2
Latest non-vulnerable version 6.5.5-1
Risk 4.0
Vulnerabilities affecting this package (5)
Vulnerability Summary Fixed by
VCID-27x3-ch78-8ueh
Aliases:
CVE-2025-67725
tornado: Tornado Quadratic DoS via Repeated Header Coalescing
6.4.2-3+deb13u2
Affected by 0 other vulnerabilities.
VCID-be89-uuxa-fyb5
Aliases:
CVE-2026-31958
GHSA-qjxf-f2mg-c6mc
Tornado is vulnerable to DoS due to too many multipart parts 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. Tornado 6.5.5 introduces new limits on the size and complexity of multipart bodies, including a default limit of 100 parts per request. These limits are configurable if needed; see `tornado.httputil.ParseMultipartConfig`. It is also now possible to disable `multipart/form-data` parsing entirely if it is not required for the application.
6.4.2-3+deb13u2
Affected by 0 other vulnerabilities.
6.5.5-1
Affected by 0 other vulnerabilities.
VCID-g13r-ansu-27av
Aliases:
CVE-2025-67724
tornado: Tornado Header Injection and XSS via reason argument
6.4.2-3+deb13u2
Affected by 0 other vulnerabilities.
6.5.4-1
Affected by 1 other vulnerability.
VCID-nq24-395d-wuar
Aliases:
CVE-2026-35536
GHSA-fqwm-6jpj-5wxc
6.4.2-3+deb13u2
Affected by 0 other vulnerabilities.
VCID-y1z8-z2f1-mqg7
Aliases:
CVE-2025-67726
tornado: Tornado Quadratic DoS via Crafted Multipart Parameters
6.4.2-3+deb13u2
Affected by 0 other vulnerabilities.
Vulnerabilities fixed by this package (0)
Vulnerability Summary Aliases
This package is not known to fix vulnerabilities.

Date Actor Action Vulnerability Source VulnerableCode Version
2026-04-16T10:13:59.248029+00:00 Debian Importer Affected by VCID-27x3-ch78-8ueh https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:54:56.886002+00:00 Debian Importer Affected by VCID-y1z8-z2f1-mqg7 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T09:02:45.175986+00:00 Debian Importer Affected by VCID-nq24-395d-wuar https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:43:48.722172+00:00 Debian Importer Affected by VCID-be89-uuxa-fyb5 https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-16T08:38:23.768615+00:00 Debian Importer Affected by VCID-g13r-ansu-27av https://security-tracker.debian.org/tracker/data/json 38.4.0
2026-04-13T06:52:50.653062+00:00 Debian Importer Affected by VCID-27x3-ch78-8ueh https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-13T06:38:08.477720+00:00 Debian Importer Affected by VCID-y1z8-z2f1-mqg7 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T18:03:52.557438+00:00 Debian Importer Affected by VCID-nq24-395d-wuar https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:51:55.909983+00:00 Debian Importer Affected by VCID-be89-uuxa-fyb5 https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-11T17:48:33.416048+00:00 Debian Importer Affected by VCID-g13r-ansu-27av https://security-tracker.debian.org/tracker/data/json 38.3.0
2026-04-08T18:34:31.684898+00:00 Debian Importer Affected by VCID-27x3-ch78-8ueh https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-08T18:24:42.329484+00:00 Debian Importer Affected by VCID-y1z8-z2f1-mqg7 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-07T06:07:12.661583+00:00 Debian Importer Affected by VCID-nq24-395d-wuar https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-04T16:21:18.317481+00:00 Debian Importer Affected by VCID-be89-uuxa-fyb5 https://security-tracker.debian.org/tracker/data/json 38.1.0
2026-04-04T15:40:33.949142+00:00 Debian Importer Affected by VCID-g13r-ansu-27av https://security-tracker.debian.org/tracker/data/json 38.1.0