SUSE-SU-2026:3101-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

SUSE-SU-2026:3100-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

USN-8549-1 python-idna vulnerability

It was discovered that idna did not properly reject oversized inputs before performing expensive processing. An attacker could possibly use this issue to cause idna to consume significant resources, leading to a denial of service...

Fedora 44 : python-idna (2026-822c07add4)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-822c07add4 advisory. Update to the latest version to bring fixes for CVE-2026-45409 and CVE-2024-3651 into the stable releases. Tenable has extracted the preceding...

SUSE-SU-2026:2828-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

python-idna: idna: Denial of Service via specially crafted long inputs

A flaw was found in the idna library, which handles Internationalized Domain Names in Python applications. A remote attacker could exploit this vulnerability by sending specially crafted, excessively long inputs to the library's encoding function. This could cause the system to consume significan...

SUSE-SU-2026:22271-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

SUSE-SU-2026:22356-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

OPENSUSE-SU-2026:21048-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

Moderate: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: python-idna: python3-idna-3.18-1.hum1 noarch python-idna-3.18-1.hum1.src src...

python-idna: idna: Denial of Service via specially crafted long inputs

A flaw was found in the idna library, which handles Internationalized Domain Names in Python applications. A remote attacker could exploit this vulnerability by sending specially crafted, excessively long inputs to the library's encoding function. This could cause the system to consume significan...

python-idna: idna: Denial of Service via specially crafted long inputs

A flaw was found in the idna library, which handles Internationalized Domain Names in Python applications. A remote attacker could exploit this vulnerability by sending specially crafted, excessively long inputs to the library's encoding function. This could cause the system to consume significan...

CVE-2026-45409

CVE-2026-45409 affects Python’s IDNA handling (idna.encode) in Python-idna. A specially crafted input could cause heavy resource consumption and potential DoS. The issue mirrors CVE-2024-3651; fixes were extended in 3.14–3.15 to reject long inputs earlier and more broadly (per-label conversions a...

CVE-2026-45409

Internationalized Domain Names in Applications IDNA for Python provides support for Internationalized Domain Names in Applications IDNA and Unicode IDNA Compatibility Processing. In versions prior to 3.15, payloads such as "\u0660" N or "\u30fb" N + "\u6f22" utilize the validcontexto function pri...

SUSE-SU-2026:21914-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

SUSE-SU-2026:21873-1 Security update for python-idna

This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security fix bsc1265413...

OPENSUSE-SU-2026:10829-1 python311-idna-3.15-1.1 on GA media

These are all security issues fixed in the python311-idna-3.15-1.1 package on the GA media of openSUSE Tumbleweed...

MiracleLinux 9 : python-idna-2.10-7.el9_4.1 (AXSA:2024-8453:01)

The remote MiracleLinux 9 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2024-8453:01 advisory. python-idna: potential DoS via resource consumption via specially crafted inputs to idna.encode CVE-2024-3651 CVE-2024-3651 RESERVED Tenable has extracted th...

MiracleLinux 8 : python-idna-2.5-7.el8_10 (AXSA:2024-8515:02)

The remote MiracleLinux 8 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2024-8515:02 advisory. python-idna: potential DoS via resource consumption via specially crafted inputs to idna.encode CVE-2024-3651 Tenable has extracted the preceding description...

MiracleLinux 7 : python-idna-2.4-1.0.1.el7.AXS7 (AXSA:2025-11498:01)

The remote MiracleLinux 7 host has a package installed that is affected by a vulnerability as referenced in the AXSA:2025-11498:01 advisory. CVE-2024-3651: more efficient resolution of joiner contexts in idna library to avoid quadratic complexity that leads to a DoS condition CVEs: CVE-2024-3651 ...