RHSA-2026:28441

During session resumption in crypto/tls, if the underlying Config has its ClientCAs or RootCAs fields mutated between the initial handshake and the resumed handshake, the resumed handshake may succeed when it should have…

urllib3 is an HTTP client library for Python.

urllib3 is a user-friendly HTTP client library for Python.

The net/url package does not set a limit on the number of query parameters in a query.

A flaw was found in Red Hat Quay's handling of resumable container image layer uploads.

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service.

url.Parse insufficiently validated the host/authority component and accepted some invalid URLs.

urllib3 is a user-friendly HTTP client library for Python.

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service.

Within HostnameError.Error(), when constructing an error string, there is no limit to the number of hosts that will be printed out.

A flaw was found in Red Hat Quay's container image upload process.

On Linux, if the target of Root.Chmod is replaced with a symlink while the chmod operation is in progress, Chmod can operate on the target of the symlink, even when the target lies outside the root.