DEBIAN-CVE-2026-6042
A security flaw has been discovered in musl libc up to 1.2.6. Affected is the function iconv of the file src/locale/iconv.c of the component GB18030 4-byte Decoder. Performing a manipulation results in inefficient algorithmic complexity. The attack must be initiated from a local position. To fix this issue, it is recommended to deploy a patch.
DEBIAN-CVE-2026-6042
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: osv:DEBIAN-CVE-2026-6042
musl
Source reference: /affected/0/package/name
- Affected versions
- 1.2.3-1
Source reference:
/affected/0/versions1.2.4-1Source reference:
/affected/0/versions1.2.4-2Source reference:
/affected/0/versions1.2.5-1Source reference:
/affected/0/versions1.2.5-1.1Source reference:
/affected/0/versions1.2.5-2Source reference:
/affected/0/versions1.2.5-3Source reference:
/affected/0/versions1.2.5-3.1Source reference:
/affected/0/versions1.2.5-3.1~deb13u1Source reference:
/affected/0/versions1.2.6-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
musl
Source reference: /affected/1/package/name
- Affected versions
- 1.2.5-3
Source reference:
/affected/1/versions - Fixed versions
- 1.2.5-3.1~deb13u1
Source reference:
/affected/1/ranges - Prerequisites
- Not stated in this record
musl
Source reference: /affected/2/package/name
- Affected versions
- 1.2.5-3
Source reference:
/affected/2/versions1.2.5-3.1~deb13u1Source reference:
/affected/2/versions - Fixed versions
- 1.2.5-3.1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "musl",
"purl": "pkg:deb/debian/musl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.2.3-1",
"1.2.4-1",
"1.2.4-2",
"1.2.5-1",
"1.2.5-1.1",
"1.2.5-2",
"1.2.5-3",
"1.2.5-3.1",
"1.2.5-3.1~deb13u1",
"1.2.6-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6042.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.5-3.1~deb13u1"
}
]
}
],
"package": {
"name": "musl",
"purl": "pkg:deb/debian/musl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.2.5-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6042.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1.2.5-3.1"
}
]
}
],
"package": {
"name": "musl",
"purl": "pkg:deb/debian/musl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.2.5-3",
"1.2.5-3.1~deb13u1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6042.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58066 · Revision 1
- Added to Heist Feed
- Publisher date