Vulnerability Reportrancher/k3s:v1.34.9-rc1-k3s1

rancher/k3s:v1.34.9-rc1-k3s1
digestsha256:2d30324353cfb1ce88eed66767d8c0db2ee6596bc4a8edfcbd665a7e90c636e3

Executive Summary

Last scanned:

Threat Score
90/100DANGEROUS
Reputation
TRUSTED

This image poses a critical security risk and must not be used in production, especially as an internet-facing service. An attacker with pod creation permissions could execute arbitrary code on the node or bypass gRPC authorization, compromising the entire cluster. CVE-2026-33186 can be mitigated by using a validating interceptor or network-level normalization; however, CVE-2026-50195 requires an immediate upgrade. Note that CVE-2026-33186 only applies if the gRPC server uses path-based authorization interceptors.

Hardening plan for this image · 4 steps

Included in Pro

Scanning procedure

  1. Vulnerability scan
    Full CVE sweep across OS packages and app dependencies
  2. Exploitability check
    CVEs ranked by exploit probability (EPSS) and matched against CISA KEV
  3. Reachability analysis
    Symbol-level proof: is the vulnerable code even linked and callable in your binaries?
  4. Runtime verification
    Live-container probes: exposed endpoints, feature flags, real defaults
  5. Supply chain analysis
    Base-image lineage, package provenance and signatures — nothing slipped in unnoticed
  6. Hardening recommendations
    A hardened build plan — patch, remove unused packages, lock down the runtime — with parity tests proving nothing broke

Vulnerabilities

Vulnerability Log

58 total
CVE IDAdjusted SeverityPackageExploit ProbabilityRisk Context
CVE-2026-50195HIGH8.42
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.1.9, 2.2.5, 2.3.2
0.3%
Theoretical Threat
Directly ExposedContext importance: HIGH
CVE-2026-33186HIGH7.28
google.golang.org/grpc
v1.78.0
fixed in 1.79.3
1.6%
Low-Moderate Risk
Directly ExposedContext importance: MEDIUM
CVE-2026-33186HIGH7.28
google.golang.org/grpc
v1.72.1
fixed in 1.79.3
1.6%
Low-Moderate Risk
Directly ExposedContext importance: MEDIUM
CVE-2026-46680MEDIUM6.63
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.0.9, 2.2.4, 2.3.1
0.2%
Theoretical Threat
Directly ExposedContext importance: HIGH
CVE-2026-53492MEDIUM6.53
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.1.9, 2.2.5, 2.3.2
0.3%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-46597MEDIUM6.38
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-42508MEDIUM6.29
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.6%
Theoretical Threat
Directly Exposed
CVE-2026-42306MEDIUM6.12
github.com/docker/docker
v25.0.15-0.20260325154711-d2dbc0547253+incompatible
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-46595MEDIUM6.03
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-53488MEDIUM5.98
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.0.10, 2.1.9, 2.2.5, 2.3.2
0.2%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-39821MEDIUM5.58
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.7%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-39821MEDIUM5.58
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.7%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-53489MEDIUM5.52
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.1.9, 2.2.5, 2.3.2
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-25680MEDIUM5.52
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-39827MEDIUM5.52
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-39834MEDIUM5.52
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-25680MEDIUM5.52
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-42502MEDIUM5.18
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-42502MEDIUM5.18
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-33814MEDIUM5.1
golang.org/x/net
v0.47.0
fixed in 0.53.0
0.8%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-33814MEDIUM5.1
golang.org/x/net
v0.43.0
fixed in 0.53.0
0.8%
Theoretical Threat
Directly ExposedContext importance: MEDIUM
CVE-2026-47262MEDIUM4.67
github.com/containerd/containerd/v2
v2.2.4-k3s2
fixed in 2.0.10, 2.1.9, 2.2.5, 2.3.2
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-39833MEDIUM4.67
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.4%
Theoretical Threat
Directly Exposed
CVE-2026-42506MEDIUM4.59
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-42506MEDIUM4.59
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-42505MEDIUM4.5
stdlib
v1.25.11
fixed in 1.25.12, 1.26.5, 1.27.0-rc.2
0.3%
Theoretical Threat
Directly Exposed
CVE-2026-46598MEDIUM4.5
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.4%
Theoretical Threat
Directly Exposed
CVE-2025-47911MEDIUM4.5
golang.org/x/net
v0.43.0
fixed in 0.45.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2025-58190MEDIUM4.5
golang.org/x/net
v0.43.0
fixed in 0.45.0
0.5%
Theoretical Threat
Directly Exposed
CVE-2026-41568LOW3.31
github.com/docker/docker
v25.0.15-0.20260325154711-d2dbc0547253+incompatible
No fix yet
0.1%
Theoretical Threat
Directly Exposed
CVE-2026-34040LOW3.23
github.com/docker/docker
v25.0.15-0.20260325154711-d2dbc0547253+incompatible
fixed in 29.3.1
10.1%
High Exploitation Risk
Post-Exploit
CVE-2026-41579LOW3.06
github.com/opencontainers/runc
v1.4.2
fixed in 1.3.6, 1.4.3, 1.5.0-rc.3
0.2%
Theoretical Threat
Directly Exposed
CVE-2026-39828LOW2.69
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.4%
Theoretical Threat
Post-Exploit
CVE-2026-39832LOW2.66
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.6%
Theoretical Threat
Post-Exploit
CVE-2026-25681LOW2.48
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-27136LOW2.48
golang.org/x/net
v0.47.0
fixed in 0.55.0
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-33997LOW2.48
github.com/docker/docker
v25.0.15-0.20260325154711-d2dbc0547253+incompatible
fixed in 29.3.1
0.4%
Theoretical Threat
Post-Exploit
CVE-2026-39831LOW2.48
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.4%
Theoretical Threat
Post-Exploit
CVE-2026-25681LOW2.48
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-27136LOW2.48
golang.org/x/net
v0.43.0
fixed in 0.55.0
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-39822LOW2.39
stdlib
v1.25.11
fixed in 1.25.12, 1.26.5, 1.27.0-rc.2
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-41567LOW2.29
github.com/docker/docker
v25.0.15-0.20260325154711-d2dbc0547253+incompatible
No fix yet
0.2%
Theoretical Threat
Post-Exploit
CVE-2026-40898LOW2.29
github.com/quic-go/quic-go
v0.59.0
fixed in 0.59.1
0.4%
Theoretical Threat
Post-Exploit
CVE-2026-39829LOW2.29
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.5%
Theoretical Threat
Post-Exploit
CVE-2026-39830LOW2.29
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.6%
Theoretical Threat
Post-Exploit
CVE-2026-39835LOW2.29
golang.org/x/crypto
v0.47.0
fixed in 0.52.0
0.5%
Theoretical Threat
Post-Exploit
CVE-2026-46600NONE0
golang.org/x/net
v0.47.0
fixed in 0.56.0
0.3%
Theoretical Threat
Not Applicable
CVE-2026-39824NONE0
golang.org/x/sys
v0.40.0
fixed in 0.44.0
0.1%
Theoretical Threat
Not Applicable
CVE-2026-56852NONE0
golang.org/x/text
v0.31.0
fixed in 0.39.0
0.4%
Theoretical Threat
Not Applicable
GHSA-hrxh-6v49-42gfNONE0
google.golang.org/grpc
v1.78.0
fixed in 1.82.1
—
Not Applicable
GHSA-gcjh-h69q-9w9gNONE0
github.com/google/cel-go
v0.26.1
fixed in 0.29.0
—
Not Applicable
CVE-2026-57497NONE0
github.com/quic-go/webtransport-go
v0.10.0
fixed in 0.11.1
—
Not Applicable
GO-2026-5932NONE0
golang.org/x/crypto
v0.47.0
No fix yet
—
Not Applicable
CVE-2026-46600NONE0
golang.org/x/net
v0.55.0
fixed in 0.56.0
0.3%
Theoretical Threat
Not Applicable
CVE-2026-56852NONE0
golang.org/x/text
v0.37.0
fixed in 0.39.0
0.4%
Theoretical Threat
Not Applicable
GHSA-hrxh-6v49-42gfNONE0
google.golang.org/grpc
v1.72.1
fixed in 1.82.1
—
Not Applicable
CVE-2026-46600NONE0
golang.org/x/net
v0.43.0
fixed in 0.56.0
0.3%
Theoretical Threat
Not Applicable
CVE-2026-39824NONE0
golang.org/x/sys
v0.38.0
fixed in 0.44.0
0.1%
Theoretical Threat
Not Applicable

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