PYSEC-2026-3388 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...

CVE-2026-53238

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

UBUNTU-CVE-2026-53238

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

CVE-2026-53238

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

CVE-2026-53238

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

CVE-2026-53238 netlabel: validate unlabeled address and mask attribute lengths

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

EUVD-2026-39329

In the Linux kernel, the following vulnerability has been resolved: netlabel: validate unlabeled address and mask attribute lengths netlblunlabeladdrinfoget used the address attribute length to determine whether the attribute data could be read as an IPv4 or IPv6 address, but did not independentl...

PT-2026-52333

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the netlabel component where the netlbl unlabel addrinfo get function fails to independently validate the length of the mask attribute. While the function uses the...

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...

CVE-2026-33376 Auth Proxy IPv6 whitelist bypass

When using an IPv6 allow-list for the Auth Proxy feature, it defaults to /32 addresses. Addresses specifying a mask explicitly are not affected; to mitigate easily, add the desired mask usually /128 to the addresses. Only auth proxy is affected; Okta, SAML, LDAP, etc are unaffected here...