Kata Containers coco-tdx malicious host can circumvent initdata verification
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Partial Red Hat: 1 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat.
Summary
Kata Containers is an open source project focusing on a standard implementation of lightweight Virtual Machines (VMs) that perform like containers. In Kata Containers versions from 3.20.0 and before, a malicious host can circumvent initdata verification. On TDX systems running confidential guests, a malicious host can selectively fail IO operations to skip initdata verification. This allows an attacker to launch arbitrary workloads while being able to attest successfully to Trustee impersonating any benign workload. This issue has been patched in Kata Containers version 3.21.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| kata-containers | kata-containers | before 3.21.0 | 3.21.0 | Patch available | CNA |
- kata-containers Vendorkata-containers Affected before 3.21.0 Fixed in 3.21.0 Patch available CNA
CPE names Threatist (inferred) · 1
Inferred from how NVD named this product before; not given by a source.
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:katacontainers:kata_containers:*:*:*:*:*:*:*:* | — | — | kata-containers |
- cpe:2.3:a:katacontainers:kata_containers:*:*:*:*:*:*:*:* Versions — — ·kata-containers
Remediation
- Fix · CNA kata-containers (kata-containers) Fixed in 3.21.0
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat OpenShift Container Platform 4 | Affected | No fix yet |
Timeline
- 2026-10-02 Threatist record created from CVE-2025-58354
References
More kata-containers vulnerabilities
- TI-2026-19382 Improper check for unusual conditions in kata-containers CVSS 4.0HIGH 8.8
- TI-2026-20033 Kata Container to Guest micro VM privilege escalation CVSS 3.1CRITICAL 9.4
- TI-2026-34827 Kata guest escape: runtime-rs guest-root to host-root escape via virtiofs CVSS 4.0CRITICAL 9.2
- TI-2026-29927 Kata Containers: CopyFile Policy Subversion via Symlinks CVSS 4.0HIGH 8.2
- TI-2026-32189 Kata Containers have VM Escape via virtiofsd Argument Injection through Default-Enabled Pod Annotations CVSS 4.0MEDIUM 5.8
- TI-2026-37266 Kata Containers: Config Path Annotation Arbitrary File Loading CVSS 3.1CRITICAL 9.6
Sources
- CVE-2025-58354 · CVE Program
- CVE-2025-58354 · NVD
- FIRST EPSS
- CVE-2025-58354 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences