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Medium severity4.0NVD Advisory· Published Jun 23, 2026· Updated Jun 29, 2026

CVE-2026-57053

CVE-2026-57053

Description

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

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Affected products

2
  • GNU/Libidn2 versions
    cpe:2.3:a:gnu:libidn:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:gnu:libidn:*:*:*:*:*:*:*:*range: >=0.1.15,<1.44
    • (no CPE)range: <1.44

Patches

Vulnerability mechanics

References

2

News mentions

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