DEBIAN-CVE-2026-26158
A flaw was found in BusyBox. This vulnerability allows an attacker to modify files outside of the intended extraction directory by crafting a malicious tar archive containing unvalidated hardlink or symlink entries. If the tar archive is extracted with elevated privileges, this flaw can lead to privilege escalation, enabling an attacker to gain unauthorized access to critical system files.
DEBIAN-CVE-2026-26158
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-2026-26158
busybox
Source reference: /affected/0/package/name
- Affected versions
- 1:1.35.0-4
Source reference:
/affected/0/versions1:1.35.0-4+deb12u1Source reference:
/affected/0/versions1:1.36.0-1~exp1Source reference:
/affected/0/versions1:1.36.1-1Source reference:
/affected/0/versions1:1.36.1-2Source reference:
/affected/0/versions1:1.36.1-3Source reference:
/affected/0/versions1:1.36.1-3.1Source reference:
/affected/0/versions1:1.36.1-4Source reference:
/affected/0/versions1:1.36.1-5Source reference:
/affected/0/versions1:1.36.1-6Source reference:
/affected/0/versions1:1.36.1-6~exp.1Source reference:
/affected/0/versions1:1.36.1-7Source reference:
/affected/0/versions1:1.36.1-8Source reference:
/affected/0/versions1:1.36.1-9Source reference:
/affected/0/versions1:1.37.0-1Source reference:
/affected/0/versions1:1.37.0-10Source reference:
/affected/0/versions1:1.37.0-10.1Source reference:
/affected/0/versions1:1.37.0-2Source reference:
/affected/0/versions1:1.37.0-3Source reference:
/affected/0/versions1:1.37.0-4Source reference:
/affected/0/versions1:1.37.0-5Source reference:
/affected/0/versions1:1.37.0-6Source reference:
/affected/0/versions1:1.37.0-7Source reference:
/affected/0/versions1:1.37.0-8Source reference:
/affected/0/versions1:1.37.0-9Source reference:
/affected/0/versions1:1.38.0-1Source reference:
/affected/0/versions1:1.38.0-2Source reference:
/affected/0/versions1:1.38.0-3Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
busybox
Source reference: /affected/1/package/name
- Affected versions
- 1:1.37.0-10
Source reference:
/affected/1/versions1:1.37.0-10.1Source reference:
/affected/1/versions1:1.37.0-6Source reference:
/affected/1/versions1:1.37.0-7Source reference:
/affected/1/versions1:1.37.0-8Source reference:
/affected/1/versions1:1.37.0-9Source reference:
/affected/1/versions1:1.38.0-1Source reference:
/affected/1/versions1:1.38.0-2Source reference:
/affected/1/versions1:1.38.0-3Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
busybox
Source reference: /affected/2/package/name
- Affected versions
- 1:1.37.0-10
Source reference:
/affected/2/versions1:1.37.0-6Source reference:
/affected/2/versions1:1.37.0-7Source reference:
/affected/2/versions1:1.37.0-8Source reference:
/affected/2/versions1:1.37.0-9Source reference:
/affected/2/versions - Fixed versions
- 1:1.37.0-10.1
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": "busybox",
"purl": "pkg:deb/debian/busybox?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1:1.35.0-4",
"1:1.35.0-4+deb12u1",
"1:1.36.0-1~exp1",
"1:1.36.1-1",
"1:1.36.1-2",
"1:1.36.1-3",
"1:1.36.1-3.1",
"1:1.36.1-4",
"1:1.36.1-5",
"1:1.36.1-6",
"1:1.36.1-6~exp.1",
"1:1.36.1-7",
"1:1.36.1-8",
"1:1.36.1-9",
"1:1.37.0-1",
"1:1.37.0-10",
"1:1.37.0-10.1",
"1:1.37.0-2",
"1:1.37.0-3",
"1:1.37.0-4",
"1:1.37.0-5",
"1:1.37.0-6",
"1:1.37.0-7",
"1:1.37.0-8",
"1:1.37.0-9",
"1:1.38.0-1",
"1:1.38.0-2",
"1:1.38.0-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "busybox",
"purl": "pkg:deb/debian/busybox?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1:1.37.0-10",
"1:1.37.0-10.1",
"1:1.37.0-6",
"1:1.37.0-7",
"1:1.37.0-8",
"1:1.37.0-9",
"1:1.38.0-1",
"1:1.38.0-2",
"1:1.38.0-3"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "1:1.37.0-10.1"
}
]
}
],
"package": {
"name": "busybox",
"purl": "pkg:deb/debian/busybox?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1:1.37.0-10",
"1:1.37.0-6",
"1:1.37.0-7",
"1:1.37.0-8",
"1:1.37.0-9"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-26158.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56673 · Revision 1
- Added to Heist Feed
- Publisher date