CVE-2026-57053

A flaw was found in GNU libidn. This vulnerability allows an attacker to cause out-of-bounds reads of uninitialized memory within the ToUnicode APIs due to mishandling in the idnatounicodeinternal function. This could lead to information disclosure or a denial of service. Mitigation No...

libidn: GNU libidn: Out-of-bounds read in ToUnicode APIs

A flaw was found in GNU libidn. This vulnerability allows an attacker to cause out-of-bounds reads of uninitialized memory within the ToUnicode APIs due to mishandling in the idnatounicodeinternal function. This could lead to information disclosure or a denial of service...

OESA-2026-2983 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

Updated libidn packages fix security vulnerability

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2. CVE-2026-57053...

MGASA-2026-0262 Updated libidn packages fix security vulnerability

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2. CVE-2026-57053...

JLSEC-2026-667 GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS : Libidn vulnerability (USN-8521-1)

The remote Ubuntu 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by a vulnerability as referenced in the USN-8521-1 advisory. It was discovered that Libidn incorrectly handled certain internationalized domain name strings. An attacker could possibly use this issue...

OESA-2026-2935 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

OESA-2026-2934 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

OESA-2026-2933 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

OESA-2026-2932 libidn security update

GNU Libidn is a fully documented implementation of the Stringprep, Punycode and IDNA 2003 specifications. Libidn's purpose is to encode and decode internationalized domain names. Security Fixes: GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs...

USN-8521-1 libidn vulnerability

It was discovered that Libidn incorrectly handled certain internationalized domain name strings. An attacker could possibly use this issue to obtain sensitive information or cause a denial of service...

USN-8521-1: Libidn vulnerability

It was discovered that Libidn incorrectly handled certain internationalized domain name strings. An attacker could possibly use this issue to obtain sensitive information or cause a denial of service...

Linux Distros Unpatched Vulnerability : CVE-2026-57053

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affect...

CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

UBUNTU-CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

CVE-2026-57053

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...

CVE-2026-57053

CVE-2026-57053 affects GNU libidn before 1.44, with out-of-bounds reads of uninitialized memory in the ToUnicode APIs due to mishandling in idna_to_unicode_internal; the vulnerable code is not present in libidn2. The CVSSv3.1 base score is 4.0 (Medium), with LOCAL attack vector, HIGH complexity, ...

EUVD-2026-38523

GNU libidn before 1.44 is prone to out-of-bounds reads of uninitialized memory in the ToUnicode APIs because of mishandling in idnatounicodeinternal. The affected code is not present in libidn2...