tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)

Tornado's gzip decompression routines work in limited-size chunks, but have no overall limit for the total size of decompressed chunks that they will accumulate There has always been a limit for the total compressed size. This allows a malicious server to consume effectively unlimited amounts of...

GHSA-MGF9-4VPG-HJ56 tornado AsyncHTTPClient accumulates decompressed chunks without size limit (gzip bomb)

Tornado's gzip decompression routines work in limited-size chunks, but have no overall limit for the total size of decompressed chunks that they will accumulate There has always been a limit for the total compressed size. This allows a malicious server to consume effectively unlimited amounts of...

python311-tornado6-6.5.7-1.1 on GA media (moderate)

python311-tornado6-6.5.7-1.1 on GA media Announcement ID: openSUSE-SU-2026:11027-1 Rating: moderate Cross-References: CVE-2026-49853 CVE-2026-49854 CVE-2026-49855 Affected Products: openSUSE Tumbleweed An update that solves 3 vulnerabilities can now be installed. Description: These are all securi...

PT-2026-49118

Name of the Vulnerable Software and Affected Versions Tornado versions prior to 6.5.6 Description When SimpleAsyncHTTPClient follows a 3xx redirect, it shallow-copies the original HTTPRequest and removes only the Host header. It fails to clear the Authorization header, auth username, auth passwor...

GHSA-CX3H-4QPV-8HC9 Tornado has out-of-bounds memory access via C extension

Summary Tornado's optional native extension tornado.speedups implements websocketmask without validating that the mask argument is exactly four bytes long. The C function reads four bytes from mask unconditionally, even when Python passes a shorter byte string. This can read beyond the provided...

Tornado has out-of-bounds memory access via C extension

Summary Tornado's optional native extension tornado.speedups implements websocketmask without validating that the mask argument is exactly four bytes long. The C function reads four bytes from mask unconditionally, even when Python passes a shorter byte string. This can read beyond the provided...

Buffer Over-read

Overview tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed. Affected versions of this package are vulnerable to Buffer Over-read via the websocketmask function in the speedups component. An attacker can trigger a read past the end of the mas...

openSUSE 16 Security Update : salt (openSUSE-SU-2026:20918-1)

The remote openSUSE 16 host has packages installed that are affected by a vulnerability as referenced in the openSUSE- SU-2026:20918-1 advisory. Security fixes: - CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554 Tenable has...

RHSA-2026:24342 Red Hat Security Advisory: python-tornado security update

Bulletin has no description...

OPENSUSE-SU-2026:20918-1 Security update for salt

This update for salt fixes the following issues: Security fixes: - CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554 Other changes in salt: - Use non vendored tornado with Python 3.11 bsc1257583, bsc1259700 - Harden Tornado fro...

tornado-python: Tornado: Denial of Service via large multipart bodies

A flaw was found in tornado-python. A remote attacker can exploit this vulnerability by sending a specially crafted, very large multipart body with numerous parts. Because the parsing of these large bodies occurs synchronously on the main thread, it can consume excessive resources, leading to a...

tornado: Tornado: Cookie attribute injection due to improper handling of cookie arguments

A flaw was found in Tornado. A remote attacker could exploit this vulnerability by injecting specially crafted characters into the domain, path, and samesite arguments when setting cookies. This could lead to cookie attribute injection, potentially allowing for information disclosure or...

Moderate: Red Hat Security Advisory: python-tornado security update

An update for python-tornado is now available for Red Hat Enterprise Linux 7 Extended Lifecycle Support. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is...

RHEL 7 : python-tornado (RHSA-2026:24342)

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:24342 advisory. Python is an interpreted, interactive, object-oriented programming language, which includes modules, classes, exceptions, very high level...

Security update for salt

This update for salt fixes the following issue: Security issues fixed: CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554. Other updates and bugfixes: Use non vendored Tornado with Python 3.11 bsc1257583, bsc1259700 Harden Torna...

SUSE-SU-2026:2257-1 Security update for salt

This update for salt fixes the following issue: Security issues fixed: - CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554. Other updates and bugfixes: - Use non vendored Tornado with Python 3.11 bsc1257583, bsc1259700 - Harden...

Security update for salt

This update for salt fixes the following issue: Security issues fixed: CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554. Other updates and bugfixes: Use non vendored Tornado with Python 3.11 bsc1257583, bsc1259700 Harden Torna...

SUSE-SU-2026:2256-1 Security update for salt

This update for salt fixes the following issue: Security issues fixed: - CVE-2026-31958: python-tornado: parsing large multipart bodies with many parts can cause a denial of service bsc1259554. Other updates and bugfixes: - Use non vendored Tornado with Python 3.11 bsc1257583, bsc1259700 - Harden...

Security update 5.0.8 for Multi-Linux Manager Salt Bundle

This update fixes the following issues: venv-salt-minion: Security issues fixed: CVE-2026-31958: tornado: Fixed parsing large multipart bodies with many parts can cause a denial of service bsc1259554 CVE-2026-27459: pyOpenSSL: Fixed issue with large cookie value that can lead to a buffer overflow...

SUSE-SU-2026:2255-1 Security update 5.0.8 for Multi-Linux Manager Salt Bundle

This update fixes the following issues: venv-salt-minion: - Security issues fixed: - CVE-2026-31958: tornado: Fixed parsing large multipart bodies with many parts can cause a denial of service bsc1259554 - CVE-2026-27459: pyOpenSSL: Fixed issue with large cookie value that can lead to a buffer...