CVE•Published 2026-04-24•Modified 2026-05-14•1 article on news•7 live references•NVD data

CVE-2026-41326Katacontainers · Confidential_containers

Vulnerability data via NVD (ingested)

CVSS v3.1

8.2

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N

EPSS percentile

Exploit Prediction Scoring System · top 95% of all CVEs

Weaknesses (CWE)

CWE-61UNIX Symbolic Link (Symlink) Following

Description

Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. From v3.4.0 to v3.28.0, an oversight in the CopyFile policy (and perhaps the CopyFile handler) allows untrusted hosts to write to arbitrary locations inside the guest workload image. This can be used to overwrite binaries inside the guest and exfiltrate data from containers; even those running inside CVMs. This vulnerability is fixed in v3.29.0.

Timeline

Published 2026-04-24

Modified 2026-05-14

External references

NVD MITRE Exploit-DB GitHub PoC Sploitus trickest/cve VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-41326

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Katacontainers Confidential Containers"

All exposed Katacontainers Confidential Containers instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Confidential Containers"

HTTP body or banner mentions "Confidential Containers" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-41326