CVE-2026-54250

MEDIUM
MEDIUM Priority: 0.01 BB Relevance: 22/100
Published: 2026-06-25 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Low Complexity Integ. Impact

CVSS Vector Breakdown

AV: Local
AC: Low
PR: High
UI: Required
S: Unchanged
C: None
I: High
A: High

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.

Weakness Classification (1)

Bug Bounty Relevance

22 / 100
✓ Low complexity

CVSS Score

5.8 / 10.0 v3.1
CVSS:3.1/AV:L/AC:L/PR:H/UI:R/S:U/C:N/I:H/A:H

EPSS — Exploitation Probability

0.17%
Raw Score 0.001670
Percentile 6.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00167
2026-10-28
0.00167

Intelligence Sources

nvd ref →