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HIGH severity

CVE-2026-62369 — kubeedge

HIGHFix: kubeedge/kubeedge@47767b7

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

Also known asGHSA-9vm9-pqxx-x83vGO-2026-6563
Published
Updated
Affected
3 pkgs
Patched
3 / 3
Exploits
None indexed
Exploitation data as of Oct 23, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs49th percentile — riskier than 49% of all scored CVEsHighest risk
0.12%0.45%0.79%1.12%0.6%0.6%Oct 26Oct 26

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

3 pkgs affected
🐹github.com/kubeedge/kubeedge🐹github.com/kubeedge/kubeedge🐹github.com/kubeedge/kubeedge

Real-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-securejoin to 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

3 total 3 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/kubeedge/kubeedge≥ 1.16.0&&< 1.21.21.21.2go get github.com/kubeedge/kubeedge@v1.21.2
🐹Gogithub.com/kubeedge/kubeedge≥ 1.22.0&&< 1.22.21.22.2go get github.com/kubeedge/kubeedge@v1.22.2
🐹Gogithub.com/kubeedge/kubeedge≥ 1.23.0&&< 1.23.11.23.1go get github.com/kubeedge/kubeedge@v1.23.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    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.

  2. 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.

  3. 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

## 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. #
O3 Security · Impact-Aware SCA

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CVE-2026-62369: kubeedge — Fixed in 1.21.2