iconv crash due to assertion failure with untrusted input
The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when converting inputs from the IBM1390 or IBM1399 character sets, which may be used to remotely crash an application. This vulnerability can be trivially mitigated by removing the IBM1390 and IBM1399 character sets from systems that do not need them.
CVE-2026-4046
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: cve:CVE-2026-4046
glibc
Source reference: /containers/cna/affected/0/product
- Affected versions
- Not stated in this record
- Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"vendor": "The GNU C Library",
"product": "glibc",
"versions": [
{
"status": "affected",
"version": "2.3.3",
"versionType": "custom",
"lessThanOrEqual": "2.43"
}
],
"defaultStatus": "unaffected"
}
]- Related CVEs
- CVE-2026-4046
Source reference:
/cveMetadata/cveId
Publisher severity
No explicit severity was provided.
- Event
- #28334 · Revision 1
- Added to Heist Feed
- Publisher date