CVE-2026-4046

A flaw was found in glibc, the GNU C Library. A remote attacker could exploit this vulnerability by providing specially crafted inputs using the IBM1390 or IBM1399 character sets to the iconv() function. This could lead to an assertion failure, causing the application to crash and resulting in a Denial of Service (DoS).

The availability impact posed by this flaw is limited on Red Hat systems. The affected iconv() function has been separated out into a an independent package (glibc-gconv-extra) and is not used in system critical software. Some applications do rely on this package and may be affected, but they are either interactive applications or are configured to restart in the event of a crash.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.