containerd: Arbitrary host CRI log file read via symlink following in CRI checkpoint restore
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Partial Red Hat: 3 fixed, 6 without a fix
Attack profile from CVSS 4.0 · CNA. Fix status from CNA, GitHub and Red Hat. Impact type from CWE-61 and the CVSS impact.
Summary
containerd is an open-source container runtime. Versions prior to 2.3.2, 2.2.5 and 2.1.9 contain a bug where the CRI plugin restores container.log from a checkpoint image without validating a symlinked path. This could result in reading an arbitrary file on the host via kubectl logs. This issue has been fixed in versions 2.3.2, 2.2.5 and 2.1.9.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| backstage | containerd | 2.1.0 to before 2.1.9; 2.2.0 to before 2.2.5; 2.3.0 to before 2.3.2 | 2.1.9, 2.2.5, 2.3.2 | Patch available | CNA |
| — | github.com/containerd/containerd/v2 (Go) | 2.1.0 to before 2.1.9 | 2.1.9 | Patch available | GHSA-rgh6-rfwx-v388 |
| — | github.com/containerd/containerd/v2 (Go) | 2.2.0 to before 2.2.5 | 2.2.5 | Patch available | GHSA-rgh6-rfwx-v388 |
| — | github.com/containerd/containerd/v2 (Go) | 2.3.0 to before 2.3.2 | 2.3.2 | Patch available | GHSA-rgh6-rfwx-v388 |
- containerd Vendorbackstage Affected 2.1.0 to before 2.1.9; 2.2.0 to before 2.2.5; 2.3.0 to before 2.3.2 Fixed in 2.1.9, 2.2.5, 2.3.2 Patch available CNA
- github.com/containerd/containerd/v2 (Go) Vendor— Affected 2.1.0 to before 2.1.9 Fixed in 2.1.9 Patch available GHSA-rgh6-rfwx-v388
- github.com/containerd/containerd/v2 (Go) Vendor— Affected 2.2.0 to before 2.2.5 Fixed in 2.2.5 Patch available GHSA-rgh6-rfwx-v388
- github.com/containerd/containerd/v2 (Go) Vendor— Affected 2.3.0 to before 2.3.2 Fixed in 2.3.2 Patch available GHSA-rgh6-rfwx-v388
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* | 2.1.0 to before 2.1.9; 2.2.0 to before 2.2.5; 2.3.0 to before 2.3.2 | Vulnerable | backstage |
- cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* Versions 2.1.0 to before 2.1.9; 2.2.0 to before 2.2.5; 2.3.0 to before 2.3.2 Vulnerable ·backstage
Remediation
- Fix · CNA containerd (containerd) Fixed in 2.1.9, 2.2.5, 2.3.2
- Fix · GHSA-rgh6-rfwx-v388 github.com/containerd/containerd/v2 (Go) Fixed in 2.1.9 Advisory →
- Fix · GHSA-rgh6-rfwx-v388 github.com/containerd/containerd/v2 (Go) Fixed in 2.2.5 Advisory →
- Fix · GHSA-rgh6-rfwx-v388 github.com/containerd/containerd/v2 (Go) Fixed in 2.3.2 Advisory →
Red Hat 5 advisories
- RHSA-2026:57013 Released 2026-08-19 · Red Hat rating ImportantRed Hat OpenShift Data Foundation 4.20.17 security, enhancement & bug fix update
- Red Hat Openshift Data Foundation 4.20 registry.redhat.io/odf4/cephcsi-rhel9, registry.redhat.io/odf4/cephcsi-rhel9-operator, registry.redhat.io/odf4/mcg-core-rhel9 +19
- RHSA-2026:56366 Released 2026-08-18 · Red Hat rating ImportantRed Hat OpenShift Data Foundation 4.19.22 security, enhancement & bug fix update
- Red Hat Openshift Data Foundation 4.19 registry.redhat.io/odf4/cephcsi-rhel9, registry.redhat.io/odf4/cephcsi-rhel9-operator, registry.redhat.io/odf4/mcg-core-rhel9 +17
- RHSA-2026:32974 Released 2026-06-29 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images syft-1.46.0-0.1.hum1@aarch64, syft-1.46.0-0.1.hum1@src, syft-1.46.0-0.1.hum1@x86_64
Show 2 more Red Hat advisories
- RHSA-2026:32963 Released 2026-06-29 · Red Hat rating ImportantRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images grype-0.115.0-0.1.hum1@aarch64, grype-0.115.0-0.1.hum1@src, grype-0.115.0-0.1.hum1@x86_64
- RHSA-2026:15862 Released 2026-05-09 · Red Hat rating CriticalRed Hat Hardened Images RPMs bug fix and enhancement update
- Red Hat Hardened Images trivy-0.69.3-1.2.hum1@aarch64, trivy-0.69.3-1.2.hum1@src, trivy-0.69.3-1.2.hum1@x86_64
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Exploit Intelligence | Affected | No fix planned: Will not fix |
| MCP Server for Red Hat OpenShift | Affected | No fix planned: Will not fix |
| Migration Toolkit for Virtualization | Affected | No fix planned: Will not fix |
| OpenShift Serverless | Affected | No fix yet |
| Red Hat Ceph Storage 6 | Affected | No fix yet: Fix deferred |
| Red Hat Ceph Storage 9 | Affected | No fix yet: Fix deferred |
| Red Hat Hardened Images | Fixed | RHSA-2026:15862, RHSA-2026:32963, RHSA-2026:32974 |
| Red Hat Openshift Data Foundation 4.19 | Fixed | RHSA-2026:56366 |
| Red Hat Openshift Data Foundation 4.20 | Fixed | RHSA-2026:57013 |
Not affected: 39 products
- Assisted Installer for Red Hat OpenShift Container Platform 2
- Confidential Compute Attestation
- Deployment Validation Operator
- Gatekeeper 3
- Kernel Module Management Operator for Red Hat Openshift
- Logging Subsystem for Red Hat OpenShift
- Logical Volume Manager Storage
- Machine Deletion Remediation Operator
- Migration Toolkit for Containers
- Migration Toolkit for Virtualization
- Multicluster Engine for Kubernetes
- Multicluster Global Hub
- Node HealthCheck Operator
- OpenShift API for Data Protection
- OpenShift Developer Tools and Services
- OpenShift Lightspeed
- OpenShift Pipelines
- OpenShift Service Mesh 2
- OpenShift Service Mesh 3
- Pen Drive Powered by Red Hat Lightspeed
- Power monitoring for Red Hat OpenShift
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat Advanced Cluster Security 4
- Red Hat Ansible Automation Platform 2
- Red Hat Build of Kueue
- Red Hat OpenShift AI (RHOAI)
- Red Hat OpenShift Container Platform 4
- Red Hat OpenShift Container Platform 5
- Red Hat OpenShift Dev Spaces
- Red Hat OpenShift GitOps
- Red Hat OpenShift Virtualization 4
- Red Hat OpenShift for Windows Containers
- Red Hat OpenStack Platform 16.2
- Red Hat OpenStack Platform 17.1
- Red Hat OpenStack Platform 18.0
- Red Hat Openshift Data Foundation 4.19
- Red Hat Openshift Data Foundation 4.20
- Red Hat Trusted Artifact Signer
- Red Hat Trusted Profile Analyzer
Timeline
- 2026-10-02 Threatist record created from CVE-2026-53489
- 2026-10-03 Alias added: GHSA-rgh6-rfwx-v388
- 2026-11-05 Affected versions changed · Red Hat
References
More backstage Containerd vulnerabilities
- TI-2021-19622 Improper Preservation of Permissions in containerd CVSS 3.1CRITICAL 9.1
- TI-2023-10635 containerd supplementary groups are not set up properly CVSS 3.1HIGH 7.8
- TI-2022-07700 Insecure handling of image volumes in containerd CRI plugin CVSS 3.1HIGH 7.5
- TI-2026-38567 Improper input validation in backstage containerd CVSS 4.0CRITICAL 9.4
- TI-2026-38569 containerd CRI checkpoint restore CDI annotation smuggling CVSS 4.0HIGH 8.4
- TI-2025-29820 Containerd vulnerable to host filesystem access during image unpack CVSS 4.0HIGH 7.6
Sources
- CVE-2026-53489 · CVE Program
- CVE-2026-53489 · NVD
- FIRST EPSS
- GHSA-rgh6-rfwx-v388 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-53489 · Red Hat security data · CC BY 4.0
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