Tornado flaws may cause denial of service or expose data
USN-8952-1 lists six CVEs that could also let an attacker bypass access controls.
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Vulnerability1 · 1 read
CVE-2026-103262
- CVSS 4.0
- 8.7 high
- EPSS
- —
- Published
- ·
- Modified
Description · NVD
Tornado versions before 6.5.9 contain an unbounded memory accumulation vulnerability in CurlAsyncHTTPClient that allows remote attackers to cause denial of service by sending a compressed response. Attackers can send a gzip-encoded decompression bomb that accumulates in memory without size limits, causing the application process to be killed by out-of-memory conditions.
- Weakness
- CWE-409
- Vector
- CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X