Tornadoweb Tornado
23 CVEs affecting Tornadoweb Tornado. Latest disclosed: 2026-10-01. Critical: 0, High: 13.
| CVE | Severity | Score | Published | Summary |
|---|---|---|---|---|
CVE-2026-49853 | High | 7.7 | 2026-07-14 | Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, SimpleAsyncHTTPClient shallow-copied redirected requests and removed onl… |
CVE-2026-103262 | High | 7.5 | 2026-10-01 | Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of ser… |
CVE-2026-91990 | High | 7.5 | 2026-09-15 | Tornado before 6.5.8 contains a memory amplification vulnerability in parse_multipart_form_data that splits multipart data before validating the max_parts limi… |
CVE-2024-14029 | High | 7.5 | 2026-09-15 | Tornado before 6.4.1 ignores duplicate Transfer-Encoding: chunked headers, treating requests as having no message body and parsing the chunked body as a subseq… |
CVE-2023-54397 | High | 7.5 | 2026-09-15 | Tornado before 6.3.3 contains an HTTP request smuggling vulnerability due to improper parsing of Content-Length headers accepting non-standard characters. Atta… |
CVE-2026-82397 | High | 7.5 | 2026-08-31 | Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.8, Tornado parses application/x-www-form-urlencoded request bodies with url… |
CVE-2026-49855 | High | 7.5 | 2026-07-14 | Tornado is a Python web framework and asynchronous networking library. Prior to 6.5.6, Tornado gzip decompression routines processed limited-size chunks but di… |
CVE-2026-31958 | High | 7.5 | 2026-03-11 | 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 multipar… |
CVE-2025-67726 | High | 7.5 | 2025-12-12 | Tornado is a Python web framework and asynchronous networking library. Versions 6.5.2 and below use an inefficient algorithm when parsing parameters for HTTP h… |
CVE-2025-67725 | High | 7.5 | 2025-12-12 | Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, a single maliciously crafted HTTP request can block the ser… |
CVE-2025-47287 | High | 7.5 | 2025-05-15 | Tornado is a Python web framework and asynchronous networking library. When Tornado's ``multipart/form-data`` parser encounters certain errors, it logs a warni… |
CVE-2024-52804 | High | 7.5 | 2024-11-22 | Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes… |
CVE-2026-35536 | High | 7.2 | 2026-04-03 | In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked… |
CVE-2014-9720 | Medium | 6.5 | 2020-01-24 | Tornado before 3.2.2 sends arbitrary responses that contain a fixed CSRF token and may be sent with HTTP compression, which makes it easier for remote attacker… |
CVE-2023-28370 | Medium | 6.1 | 2023-05-25 | Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a user to an arbitrary web site and cond… |
CVE-2026-103263 | Medium | 5.9 | 2026-10-01 | Tornado before 6.5.9 contains a path traversal vulnerability in StaticFileHandler that follows symbolic links inside the static root without confirming the res… |
CVE-2026-91992 | Medium | 5.9 | 2026-09-15 | Tornado before 6.5.7 contains a credential leak vulnerability in CurlAsyncHTTPClient where pycurl handles are reused across requests without proper state clear… |
CVE-2026-91991 | Medium | 5.4 | 2026-09-15 | Tornado before 6.5.8 contains an incomplete fix for cookie attribute injection that allows attackers to inject arbitrary cookie attributes by passing capitaliz… |
CVE-2024-58384 | Medium | 5.4 | 2026-09-15 | Tornado before 6.4.1 contains a CRLF injection vulnerability in CurlAsyncHTTPClient that fails to reject carriage return and line feed characters in request he… |
CVE-2025-67724 | Medium | 5.4 | 2025-12-12 | Tornado is a Python web framework and asynchronous networking library. In versions 6.5.2 and below, the supplied reason phrase is used unescaped in HTTP header… |