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CVE-2022-36103

27
FAUCET Score

CVE-2022-36103 affects Talos Linux, a distribution for Kubernetes, specifically versions prior to 1.2.2. An improper validation flaw in the Talos control plane allows an attacker with a worker node join token to obtain a Talos API certificate, granting full access to the Talos API on a control plane node. This vulnerability carries a high severity CVSS score of 8.8, indicating a network-based attack with low complexity and high impact on confidentiality, integrity, and availability. While the join token is typically protected, misconfigurations in Kubernetes workloads could expose it. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.2.2CPE matchmatch criteria
cpe:2.3:o:siderolabs:talos_linux:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.2HIGH

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.55%
Probability of exploitation in next 30 days
EPSS Percentile
42.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0055 is in the 33rd percentile among its peer group of 17,823 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
gopatch availablevia ghsa
Product: github.com/talos-systems/talosFixed in: 1.2.2

Vendor Advisories (1)

goGHSA-7hgc-php5-77qqhigh

Talos worker join token can be used to get elevated access level to the Talos API

Sep 16, 2022

References

github.com / siderolabs/talos/commit/9eaf33f3f274e746ca1b442c0a1a0dae0cec088f
PatchThird Party Advisory
github.com / siderolabs/talos/releases/tag/v1.2.2
Release NotesThird Party Advisory
github.com / siderolabs/talos/security/advisories/GHSA-7hgc-php5-77qq
MitigationThird Party Advisory