DEBIAN-CVE-2026-63374

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connecttcp and TLSStream.wrap can validate internationalized host names after the standard library converts them with IDNA 2003 instead of IDNA 2008. When a...

CVE-2026-63374 AnyIO: TLSStream IDNA 2003 host name encoding enables potential TLS certificate spoofing

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connecttcp and TLSStream.wrap can validate internationalized host names after the standard library converts them with IDNA 2003 instead of IDNA 2008. When a...

CVE-2026-63374: Improper Certificate Validation

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connecttcp and TLSStream.wrap can validate internationalized host names after the standard library converts them with IDNA 2003 instead of IDNA 2008. When a...

SUSE CVE-2026-63374

AnyIO is a high level asynchronous concurrency and networking framework that works on top of either Trio or asyncio. Prior to 4.14.2, connecttcp and TLSStream.wrap can validate internationalized host names after the standard library converts them with IDNA 2003 instead of IDNA 2008. When a...

Improper Validation of Certificate with Host Mismatch

Overview anyio is a High level compatibility layer for multiple asynchronous event loop implementations Affected versions of this package are vulnerable to Improper Validation of Certificate with Host Mismatch via TLSStream.wrap in src/anyio/streams/tls.py, which resolves international domain nam...