Vulnerability DatabaseCVE-2026-57053
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CVE-2026-57053
Published:June 23, 2026
Updated:August 04, 2026
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.
Affected Packages
https://git.savannah.gnu.org/git/libidn.git (SCM_GIT):
Affected version(s) >=v1.36 <v1.44
Fix Suggestion:
Update to version v1.44
Related Resources (2)
https://lists.gnu.org/archive/html/help-libidn/2026-05/msg00000.html
https://lists.gnu.org/archive/html/help-libidn/2026-06/msg00001.html
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CVSS v4
Base Score:
2.1
Attack Vector
LOCAL
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
LOW
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
4
Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
LOW
Weakness Type (CWE)
Improper Validation of Specified Quantity in Input
CWE-1284
EPSS
Base Score:
0.15