CVE catalog
CVE-2026-108119
A flaw was found in busybox. The tar applet's deferred link-creation handling for symlink and hardlink entries with unsafe-looking targets does not validate that the resolved destination remains insid
- Severity
- Medium · CVSS 6.3
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:H - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.13% · Oct 25, 2026
A flaw was found in busybox. The tar applet's deferred link-creation handling for symlink and hardlink entries with unsafe-looking targets does not validate that the resolved destination remains inside the extraction directory once the deferred link is created. An attacker can craft a tar archive using a symlink target of exactly '..' combined with a deferred hardlink to create a new file outside the extraction directory, or reuse an extraction directory across two archives to replace an existing file outside it. If the archive is extracted with elevated privileges, this flaw can lead to privilege escalation or arbitrary code execution.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | busybox | sid | 1:1.38.0-3 | vulnerable |
| Debian | busybox | forky | 1:1.38.0-3 | vulnerable |
| Debian | busybox | trixie | 1:1.37.0-6 | vulnerable |
| Debian | busybox | bookworm | 1:1.35.0-4+deb12u1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | busybox | source | sid | (unfixed) | not yet assigned | Not reported | [1150771] |
| Debian | busybox | source | forky | (unfixed) | not yet assigned | Not reported | [1150771] |
| Debian | busybox | source | trixie | (unfixed) | not yet assigned | Not reported | [1150771] |
| Debian | busybox | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150771] |
Notes
[trixie] busybox: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [busybox]Affected
Source package: [busybox]
Details (2)
1:1.35.0-4+deb12u1+b1· amd64 · bookwormAffected
nvd · busybox · debian · bookworm
1:1.35.0-4+deb12u1+b1· arm64 · bookwormAffected
nvd · busybox · debian · bookworm
- [busybox-static]Affected
Source package: [busybox]
Details (2)
1:1.35.0-4+deb12u1+b1· amd64 · bookwormAffected
nvd · busybox · debian · bookworm
1:1.35.0-4+deb12u1+b1· arm64 · bookwormAffected
nvd · busybox · debian · bookworm
- [busybox-syslogd]Affected
Source package: [busybox]
Details (2)
1:1.35.0-4+deb12u1· all · bookwormAffected
nvd · busybox · debian · bookworm
1:1.35.0-4+deb12u1· all · bookwormAffected
nvd · busybox · debian · bookworm
- [udhcpc]Affected
Source package: [busybox]
Details (2)
1:1.35.0-4+deb12u1+b1· amd64 · bookwormAffected
nvd · busybox · debian · bookworm
1:1.35.0-4+deb12u1+b1· arm64 · bookwormAffected
nvd · busybox · debian · bookworm
- [udhcpd]Affected
Source package: [busybox]
Details (2)
1:1.35.0-4+deb12u1+b1· amd64 · bookwormAffected
nvd · busybox · debian · bookworm
1:1.35.0-4+deb12u1+b1· arm64 · bookwormAffected
nvd · busybox · debian · bookworm
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-108119]
- [https://security-tracker.debian.org/tracker/CVE-2026-108119]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-108119.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3853.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]