SUSE SLED15 / SLES15 Security Update : python-idna (SUSE-SU-2026:3100-1)

The remote SUSE Linux SLED15 / SLEDSAP15 / SLES15 / SLESSAP15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:3100-1 advisory. This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can...

SUSE SLES12 Security Update : python-idna (SUSE-SU-2026:3101-1)

The remote SUSE Linux SLES12 / SLESSAP12 host has packages installed that are affected by a vulnerability as referenced in the SUSE-SU-2026:3101-1 advisory. This update for python-idna fixes the following issue - CVE-2026-45409: specially crafted inputs to idna.encode can bypass earlier security...

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. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

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...

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. Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST onlineupdate or "zypper patch"...

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-2026:22356-1 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...

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...

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...

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...

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...

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...

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...

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...