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CVE-2026-57053: Improper Validation of Specified Quantity in Input

🗓️ 23 Jun 2026 00:00:00Reported by Rapid7Type 
rapid7
 rapid7
🔗 www.rapid7.com

Out-of-bounds read in GNU libidn before 1.44 ToUnicode APIs via idna_to_unicode_internal.

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Refs
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attackerkb
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CVE-2026-57053
23 Jun 202616:40
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alpinelinux
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23 Jun 202616:40
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cve
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CVE-2026-57053
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23 Jun 202616:40
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CVE-2026-57053
23 Jun 202616:40
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nessus
Tenable Nessus
EulerOS 2.0 SP12 : libidn (EulerOS-SA-2026-3275)
8 Sep 202600:00
–nessus
nessus
Tenable Nessus
EulerOS 2.0 SP12 : libidn (EulerOS-SA-2026-3350)
8 Sep 202600:00
–nessus
nessus
Tenable Nessus
Fedora 44 : libidn (2026-2291be7d88)
12 Aug 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : mingw-libidn (2026-7ddafb24a3)
11 Aug 202600:00
–nessus
nessus
Tenable Nessus
Fedora 43 : libidn (2026-acf66846ee)
12 Aug 202600:00
–nessus
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29 Jun 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.12.5 - 4
EPSS0.00139
SSVC
0