[ CVE-2026-122054 · Published 4 Nov 2026 ]

Vulnerability in The GNU C Library glibc

CVSS 5.9 No fix listed yet

[ Description ]Official description

Converting crafted BIG-HKSCS input to UCS-4 or the internal wide character encoding, for example with iconv, in the GNU C Library version 2.18 through 2.31 may result in the converter making no progress, causing the calling application to hang.

[ Fixes ]Fixes and patches

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.