CVE-2026-54250
Last modified
CVE-2026-54250 is a medium-severity vulnerability rated 5.8/10 on the CVSS scale. K3s is a fully conformant production-ready Kubernetes distribution. Prior to 1.35.3+k3s1, 1.34.6+k3s1, v1.33.10+k3s1, a path traversal vulnerability exists in K3s's etcd snapshot decompression functionality. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
K3s is a fully conformant production-ready Kubernetes distribution. Prior to 1.35.3+k3s1, 1.34.6+k3s1, v1.33.10+k3s1, a path traversal vulnerability exists in K3s's etcd snapshot decompression functionality. Zip files containing archive members with maliciously crafted names can be written to arbitrary locations on the filesystem when an administrator restores the archive as a compressed etcd snapshot. This vulnerability is fixed in 1.35.3+k3s1, 1.34.6+k3s1, v1.33.10+k3s1.
Metrics
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| k3s-io | k3s | >= 1.35.0-rc1+k3s1, < 1.35.3+k3s1; >= 1.34.0-rc1+k3s1, < 1.34.6+k3s1; < 1.33.10+k3s1 |
References
Timeline
- Published
- Last Modified
- Status
- Undergoing Analysis
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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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