Threat Intelligence Database

Red Hat Satellite is a system management solution that allows organizations to configure and maintain their systems without the necessity to provide public Internet access to their servers or other client systems. It performs provisioning and configuration management of predefined standard operating environments. Security Fix(es): * yggdrasil-worker-forwarder: gRPC-Go: Authorization bypass due to improper HTTP/2 path validation (CVE-2026-33186) * yggdrasil-worker-forwarder: Incorrect parsing of IPv6 host literals in net/url (CVE-2026-25679) * yggdrasil-worker-forwarder: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (CVE-2026-39821) * yggdrasil-worker-forwarder: Go net package: Denial of Service via long CNAME response in LookupCNAME (CVE-2026-33811) * yggdrasil-worker-forwarder: golang crypto/x509: Denial of Service via excessive processing of DNS SAN entries (CVE-2026-27145) * python3.12-pulpcore: pulpcore: relative_path_validator bypass via directory traversal in FilesystemExport (CVE-2026-12701)

The ToASCII and ToUnicode functions incorrectly accept Punycode-encoded labels that decode to an ASCII-only label. For example, ToUnicode("xn--example-.com") incorrectly returns the name "example.com" rather than an error. This behavior can lead to privilege escalation in programs using the idna package. For example, a program which performs privilege checks on the ASCII hostname may reject "example.com" but permit "xn--example-.com". If that program subsequently converts the ASCII hostname to Unicode, it will inadvertently permits access to the Unicode name "example.com".

A vulnerability was identified in the kjd/idna library, specifically within the `idna.encode()` function, affecting version 3.6. The issue arises from the function's handling of crafted input strings, which can lead to quadratic complexity and consequently, a denial of service condition. This vulnerability is triggered by a crafted input that causes the `idna.encode()` function to process the input with considerable computational load, significantly increasing the processing time in a quadratic manner relative to the input size.

MediumVulnerabilityGermanyFranceUnited Kingdom+2#cve#cve-2024-3651#cwe-1333