CVE-2026-53488
Last modified
CVE-2026-53488 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. containerd is an open-source container runtime. In versions prior to 1.7.33, 2.3.2, 2.2.5, 2.1.9, and 2.0.10 the CRI plugin propagates labels from an image config (LABEL instruction in Dockerfile) to a container without validation. EPSS estimates a 0.23% chance of exploitation in the next 30 days.
Description
containerd is an open-source container runtime. In versions prior to 1.7.33, 2.3.2, 2.2.5, 2.1.9, and 2.0.10 the CRI plugin propagates labels from an image config (LABEL instruction in Dockerfile) to a container without validation. This may result in executing an arbitrary command on the host, via a plugin that consumes container labels for some operations. This issue has been fixed in versions 1.7.33, 2.3.2, 2.2.5, 2.1.9, and 2.0.10.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Linuxfoundation | Containerd | >= 1.7.0, < 1.7.33 |
| Linuxfoundation | Containerd | >= 2.0.0, < 2.0.10 |
| Linuxfoundation | Containerd | >= 2.1.0, < 2.1.9 |
| Linuxfoundation | Containerd | >= 2.2.0, < 2.2.5 |
| Linuxfoundation | Containerd | >= 2.3.0, < 2.3.2 |
References
- https://github.com/containerd/containerd/security/advisories/GHSA-xhf5-7wjv-pqxpMitigation, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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