Tornado could be made to crash or expose sensitive information if it received specially crafted network traffic.
python-tornado - scalable, non-blocking web server and tools
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls. ( CVE-2023-54397 , CVE-2024-14029 , CVE-2026-91990 , CVE-2026-91992 , CVE-2026-103262 , CVE-2026-103263 )
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls.
( CVE-2023-54397 , CVE-2024-14029 , CVE-2026-91990 , CVE-2026-91992 , CVE-2026-103262 , CVE-2026-103263 )
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls. ( CVE-2023-54397 , CVE-2024-14029 , CVE-2026-91990 , CVE-2026-91992 , CVE-2026-103262 , CVE-2026-103263 )
It was discovered that Tornado did not properly handle certain HTTP requests and network inputs. An attacker could possibly use these issues to cause a denial of service, expose sensitive information, or bypass access controls.
( CVE-2023-54397 , CVE-2024-14029 , CVE-2026-91990 , CVE-2026-91992 , CVE-2026-103262 , CVE-2026-103263 )
In general, a standard system update will make all the necessary changes.
The problem can be corrected by updating your system to the following package versions:
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The full story
This article is one source in a clustered incident — the cluster page carries the summary, timeline and every other outlet covering it.
