CVE-2026-62369
CVE-2026-62369 — KubeEdge: keadm DecompressTarGz path traversal enables arbitrary file write on Windows during edge node join
KubeEdge is an open source system for extending native containerized application orchestration capabilities to hosts at Edge. From 1.16.0 until 1.21.2, 1.22.2, and 1.23.1, the DecompressTarGz function in keadm/cmd/keadm/app/cmd/util/common.go joins archive entry names to the extraction destination without sufficient validation. During keadm join or installation on Windows edge nodes, an archive influenced through a compromised, replaced, or untrusted download source can contain parent-directory components, Windows-style backslashes, absolute paths, or drive-prefixed paths that escape the intended directory. The affected keadm process can consequently write or overwrite files with its own privileges, potentially modifying configuration, executable, or service files and enabling persistent system modification or code execution. This issue is fixed in versions 1.21.2, 1.22.2, and 1.23.1.
Published Updated Sources: cvelistV5, GitHub_M
Triage
Is it exploited, how likely is exploitation, what does it touch, and how severe do the scoring sources call it.
Exploitation
Unreported
no source claims exploitation
EPSS
1%
chance of exploitation in 30 days
CVSS base
8.1
HIGH
CISA SSVC assessment
Three decision points CISA publishes for the CVEs it assesses · SSVC 2.0.3. A stakeholder decision, not a severity score.
Exploitation
None
none · proof-of-concept · active
Automatable
No
can an attacker script all four kill-chain steps
Technical impact
Partial
partial · total control of the vulnerable component
Affected scope
The catalog records vendors and products as separate lists, not pairs, so which product belongs to which vendor is not something this page can say.
Vendors (1)
Products (1)
Every base score collected
Sources score independently and disagree; each row says who scored it and under which version.
| Score | Version | Severity | Expl. | Impact | Source |
|---|---|---|---|---|---|
| 8.1 | CVSS 3.1 | HIGH | — | — | cvelistV5 |
Weakness & attack patterns
- CWE-22
Detection
Read off the CVSS vector and the weakness class. Starting points, not rules we have tested.
- Search application, proxy, and WAF logs for requests touching /cmd/keadm/app/cmd/util/common.go.
References
13 on the record
- github.com/kubeedge/kubeedge/security/advisories/GHSA-9vm9-pqxx-x83v
x_refsource_CONFIRM
- github.com/kubeedge/kubeedge/pull/7028
x_refsource_MISC
- github.com/kubeedge/kubeedge/pull/7029
x_refsource_MISC
- github.com/kubeedge/kubeedge/pull/7030
x_refsource_MISC
- github.com/kubeedge/kubeedge/commit/47767b7f2649afcfa3a856e87d556f7777e0428d
x_refsource_MISC
- github.com/kubeedge/kubeedge/commit/a524a66a1ae1691eb8ff16b6ff9a93fb370d4047
x_refsource_MISC
- github.com/kubeedge/kubeedge/commit/ee02dea9d08114afc4a8f401b1c2f30e84e1de40
x_refsource_MISC
- github.com/kubeedge/kubeedge/blob/master/CHANGELOG/CHANGELOG-1.21.md
x_refsource_MISC
Elsewhere on this site
Not in any source we poll
Listed rather than left blank: an empty field and an unmeasured one look identical on screen, and only one is a reason to look elsewhere.
- No confirmed IOCs, IP addresses, domains, file hashes, or malware artifacts supplied.
- No organization-specific asset inventory, compensating-control status, or patch deployment evidence supplied.
- No exploit packet captures, log samples, or incident case IDs supplied.