Tornado
32 CVEs tracked. None of them is in CISA KEV.
This hub aggregates every CVE we track for Tornado, a product in the oss libraries space. Use it to gauge the current risk picture and drill into individual advisories.
Tornado CVEs per month
| Month | CVEs |
|---|---|
| 2024-10 | 0 |
| 2024-11 | 2 |
| 2024-12 | 0 |
| 2025-01 | 0 |
| 2025-02 | 0 |
| 2025-03 | 1 |
| 2025-04 | 0 |
| 2025-05 | 1 |
| 2025-06 | 0 |
| 2025-07 | 0 |
| 2025-08 | 0 |
| 2025-09 | 0 |
| 2025-10 | 0 |
| 2025-11 | 0 |
| 2025-12 | 3 |
| 2026-01 | 0 |
| 2026-02 | 0 |
| 2026-03 | 2 |
| 2026-04 | 1 |
| 2026-05 | 0 |
| 2026-06 | 1 |
| 2026-07 | 3 |
| 2026-08 | 1 |
| 2026-09 | 8 |
Severity
How the 32 CVEs score on CVSS. Severity is not exploitation: KEV is counted above.
- Critical1
- High15
- Medium9
Latest CVEs
The 15 most recently published vulnerabilities affecting Tornado.
- CVE-2026-91992Tornado before 6.5.7 Credential Leak via Handle Reuse5.9
- CVE-2026-91991Tornado before 6.5.8 Cookie Attribute Injection via Capitalized kwargs5.4
- CVE-2026-91990Tornado before 6.5.8 Memory Amplification DoS via multipart7.5
- CVE-2024-58384Tornado before 6.4.1 CRLF Injection via CurlAsyncHTTPClient5.4
- CVE-2024-14029Tornado before 6.4.1 HTTP Request Smuggling via Transfer-Encoding7.5
- CVE-2023-54397Tornado before 6.3.3 HTTP Request Smuggling via Content-Length7.5
- GHSA-8423-8fgw-73vqtornado: multipart split() creates huge temp list before max_parts check -> memory amplification DoS (httputil.py:34)—
- GHSA-wwv5-g3v4-889xTornado: Incomplete fix for CVE-2026-35536: cookie attribute injection re-opened via the legacy case-insensitive `**kwargs` path in `set_cookie`—
- CVE-2026-82397Tornado: Urlencoded body parsing omits max_num_fields, so one request can stall the event loop7.5
- CVE-2026-49855tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)7.5
- CVE-2026-49854Tornado: Out-of-bounds memory access in C extension5.3
- CVE-2026-49853Tornado: Authorization header forwarded across cross-origin redirects in SimpleAsyncHTTPClient7.7
- GHSA-pw6j-qg29-8w7fTornado: CurlAsyncHTTPClient leaks per-request credentials on handle reuse—
- CVE-2026-35536In Tornado before 6.5.5, cookie attribute injection could occur because the domain, path, and samesite arguments to .RequestHandler.set_cookie were not checked for crafted characters.7.2
- GHSA-78cv-mqj4-43f7Tornado has incomplete validation of cookie attributes—
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