CVE-2026-62369 is a high-severity (CVSS 8.1) Path Traversal vulnerability in github.com/kubeedge/kubeedge. A fix is available for github.com/kubeedge/kubeedge — see the affected versions and patch details below.
KubeEdge: keadm DecompressTarGz path traversal enables arbitrary file write on Windows during edge node join
Exploitation Status
No confirmed exploitation observed yet
- CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.
Exploitation and automatability from CISA’s SSVC triage for CVE-2026-62369.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2026-62369 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Real-World Exposure
github.com/kubeedge/kubeedge🐹github.com/kubeedge/kubeedge🐹github.com/kubeedge/kubeedgeReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Description
KubeEdge keadm contains a path traversal vulnerability in the DecompressTarGz archive extraction function.
Archive entry names were joined directly with the extraction destination without sufficient validation. A crafted tar.gz archive containing parent-directory components, Windows-style backslashes, absolute paths, or drive-prefixed paths could cause files to be written outside the intended extraction directory.
The issue is particularly relevant to Windows edge nodes during the keadm join or installation process when keadm extracts downloaded component archives.
Impact
An attacker who can cause an affected keadm process to extract a malicious archive may write or overwrite files outside the intended destination directory with the privileges of the user running keadm.
On Windows edge nodes, this may allow modification of configuration files, executable files, service-related files, or other writable system locations. Depending on the overwritten file and the privileges of the keadm process, successful exploitation could lead to persistent system modification or code execution.
Exploitation requires the attacker to influence the contents of an archive processed by keadm, such as through a compromised, replaced, or otherwise untrusted download source.
Patches
The extraction logic now:
- resolves the destination directory to an absolute path;
- rejects empty archive entry names;
- normalizes Windows-style path separators before validation;
- rejects parent-directory traversal paths;
- rejects absolute and Windows drive-prefixed paths;
- uses
filepath-securejointo ensure extracted files remain within the destination directory.
Fixes are planned for the following maintained releases:
- v1.23.1
- v1.22.2
- v1.21.2
Workarounds
Until a patched release is available:
- only install or join edge nodes using trusted KubeEdge package sources;
- verify the integrity and origin of downloaded archives before extraction;
- do not use custom or untrusted component archives with
keadm; - restrict write permissions and administrative privileges for the account running
keadm; - avoid performing Windows edge-node installation or join operations when the package source cannot be trusted.
Credits
KubeEdge thanks Sang-Hoon Choi (KoreaSecurity, Sejong University) for responsibly reporting this issue and for coordinating with the KubeEdge maintainers through the security disclosure process.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/kubeedge/kubeedge | ≥ 1.16.0&&< 1.21.2 | 1.21.2go get github.com/kubeedge/kubeedge@v1.21.2 |
| 🐹Go | github.com/kubeedge/kubeedge | ≥ 1.22.0&&< 1.22.2 | 1.22.2go get github.com/kubeedge/kubeedge@v1.22.2 |
| 🐹Go | github.com/kubeedge/kubeedge | ≥ 1.23.0&&< 1.23.1 | 1.23.1go get github.com/kubeedge/kubeedge@v1.23.1 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/kubeedge/kubeedge, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update github.com/kubeedge/kubeedge to 1.21.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2026-62369 is resolved across your whole dependency graph.
Workarounds
Resolve every user-supplied path to its canonical form and reject anything that escapes the intended directory, and run the component under an account that has no read or write access outside the directory it legitimately serves.
Frequently Asked Questions
Is CVE-2026-62369 in your dependencies?
Find it across Go, including transitive dependencies.