CVE-2026-126348

The Addressable library (versions 2.0.0 to 2.9.1 ) contains a vulnerability in its pure-Ruby Addressable::IDNA.to_unicode implementation. The flaw allows the library to decode invalid Punycode A-labels instead of returning them unchanged. This can result in Addressable::URI#display_uri showing a ...

CVE-2026-126348 Addressable display_uri can show misleading hosts with invalid Punycode A-labels

Addressable is an alternative implementation to the URI implementation that is part of Ruby's standard library. From 2.0.0 until 2.9.1, the pure-Ruby Addressable::IDNA.tounicode implementation decodes invalid Punycode A-labels instead of returning them unchanged. Labels that decode to ASCII text ...

Improper Input Validation

libidn2.so is vulnerable to Improper Input Validation. The vulnerability is due to improper roundtrip checks while converting A-labels to U-labels. This makes it possible for an attacker to impersonate arbitrary domains...

EulerOS Virtualization for ARM 64 3.0.6.0 : libidn2 (EulerOS-SA-2020-1338)

According to the version of the libidn2 package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability : - GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels ...

EulerOS 2.0 SP8 : libidn2 (EulerOS-SA-2020-1161)

According to the version of the libidn2 package installed, the EulerOS installation on the remote host is affected by the following vulnerability : - GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it...

OPENSUSE-SU-2019:2613-1 Security update for libidn2

This update for libidn2 to version 2.2.0 fixes the following issues: - CVE-2019-12290: Fixed an improper round-trip check when converting A-labels to U-labels bsc1154884. - CVE-2019-18224: Fixed a heap-based buffer overflow that was caused by long domain strings bsc1154887. This update was import...

Security update for libidn2 (moderate)

openSUSE Security Update: Security update for libidn2 Announcement ID: openSUSE-SU-2019:2613-1 Rating: moderate References: 1154884 1154887 Cross-References: CVE-2019-12290 CVE-2019-18224 Affected Products: openSUSE Leap 15.0 An update that fixes two vulnerabilities is now available. Description:...

CVE-2019-12290

GNU libidn2 before 2.2.0 fails to perform the roundtrip checks specified in RFC3490 Section 4.2 when converting A-labels to U-labels. This makes it possible in some circumstances for one domain to impersonate another. By creating a malicious domain that matches a target domain except for the...