CVE catalog
CVE-2026-19444
A path traversal vulnerability was discovered in the Kubernetes kubectl client's kubectl cp command on Windows. When copying files from a container, kubectl runs tar inside the container to build a ta
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:A/AC:L/PR:H/UI:R/S:C/C:L/I:H/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.23% · Oct 25, 2026
A path traversal vulnerability was discovered in the Kubernetes kubectl client's kubectl cp command on Windows. When copying files from a container, kubectl runs tar inside the container to build a tar archive, transfers it over the network, and unpacks it on the local machine. If the tar binary in the container is malicious, it can execute arbitrary code and emit unexpected output, allowing an attacker who controls container contents to write files to arbitrary paths on the user's local machine when kubectl cp is invoked, limited only by the system permissions of the local user. This issue only affects kubectl clients running on Windows.
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 | kubernetes | sid | 1.36.4+ds-1 | not affected |
| Debian | kubernetes | forky | 1.36.4+ds-1 | not affected |
| Debian | kubernetes | trixie | 1.32.3+ds-2 | not affected |
| Debian | kubernetes | bookworm | 1.20.5+really1.20.2-1.1+deb12u1 | not affected |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | kubernetes | source | sid | Not affected | unimportant | Not reported | Not reported |
| Debian | kubernetes | source | forky | Not affected | unimportant | Not reported | Not reported |
| Debian | kubernetes | source | trixie | Not affected | unimportant | Not reported | Not reported |
| Debian | kubernetes | source | bookworm | Not affected | unimportant | Not reported | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [kubernetes-client]Not affected
Source package: [kubernetes]
Details (2)
1.20.5+really1.20.2-1.1+deb12u1· amd64 · bookwormNot affected
nvd · kubernetes · debian · bookworm
1.20.5+really1.20.2-1.1+deb12u1· arm64 · bookwormNot affected
nvd · kubernetes · debian · bookworm
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-19444]
- [https://security-tracker.debian.org/tracker/CVE-2026-19444]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-19444.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-3613.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [Red Hat security advisories and VEX]