How severe is CVE-2018-1002105?

CVE-2018-1002105 has a CVSS score of 9.8/10, rated CRITICAL. Immediate patching is strongly recommended.

Which packages are affected by CVE-2018-1002105?

CVE-2018-1002105 affects the following packages: github.com/kubernetes/kubernetes (Go), github.com/kubernetes/kubernetes (Go), github.com/kubernetes/kubernetes (Go). Ecosystems affected: Go.

How do I fix CVE-2018-1002105?

Update github.com/kubernetes/kubernetes to version 1.10.11 or later. Run your dependency manager's update command and verify no transitive dependencies pin the vulnerable version. Use O3 Security's SCA scanner to confirm the fix is applied across your entire dependency tree.

Is CVE-2018-1002105 actively exploited in the wild?

Yes. There are 13 known exploit references for CVE-2018-1002105, including 2 documented proof-of-concept exploits on Exploit-DB and 7 in-the-wild exploitations observed on GitHub and other sources. Treat this as actively exploitable and prioritize patching immediately. All exploit code should only be run in an isolated sandbox environment for research or authorized testing — never against production systems without explicit written authorization.

What is the EPSS score for CVE-2018-1002105?

CVE-2018-1002105 has an EPSS (Exploit Prediction Scoring System) score of 90.1%, placing it in the 100th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. A score above 50% indicates significantly elevated exploitation risk — immediate patching is strongly recommended.

When was CVE-2018-1002105 published, and has it been updated?

CVE-2018-1002105 was published on December 5, 2018 and was last updated on April 10, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

CVE-2018-1002105

CRITICAL

Privilege Escalation in Kubernetes

Also known asGHSA-579h-mv94-g4gpGO-2022-0792

Published

Dec 5, 2018

Updated

Apr 10, 2026

Affected

3 pkgs

Patched

3 / 3

Exploits

13 known

EPSS Exploitation Probability

via FIRST.org ↗

90.1%probability of exploitation in next 30 days

Very High Risk100th percentile-0.09%

EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.

Blast Radius

3 pkgs affected

🐹github.com/kubernetes/kubernetes🐹github.com/kubernetes/kubernetes🐹github.com/kubernetes/kubernetes

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

In all Kubernetes versions prior to v1.10.11, v1.11.5, and v1.12.3, incorrect handling of error responses to proxied upgrade requests in the kube-apiserver allowed specially crafted requests to establish a connection through the Kubernetes API server to backend servers, then send arbitrary requests over the same connection directly to the backend, authenticated with the Kubernetes API server's TLS credentials used to establish the backend connection.

Affected Packages

3 total 3 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`github.com/kubernetes/kubernetes`	all versions	1.10.11
🐹Go	`github.com/kubernetes/kubernetes`	≥ 1.11.0&&< 1.11.5	1.11.5
🐹Go	`github.com/kubernetes/kubernetes`	≥ 1.12.0&&< 1.12.3	1.12.3

Exploits & PoCs

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

EDB-46053remotemultiple

Kubernetes - (Authenticated) Arbitrary Requests

by evict · Dec 10, 2018

Exploit-DB Source

EDB-46052remotemultiple

Kubernetes - (Unauthenticated) Arbitrary Requests

by evict · Dec 10, 2018

Exploit-DB Source

Frequently Asked Questions

O3 Security · Impact-Aware SCA

Is CVE-2018-1002105 in your stack?

O3 detects CVE-2018-1002105 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

Scan my stack How O3 SCA works

CVSS Score

9.8/10

CVSS v3 base score

Vector breakdown

AV:Attack Vector

Network

AC:Attack Complexity

Low

PR:Privileges Required

None

UI:User Interaction

None

S:Scope

Unchanged

C:Confidentiality

High

I:Integrity

High

A:Availability

High

Raw vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaponization

No known public exploit tooling found.

OpenSSF Scorecard

Package health score

kubernetes

7.6/10

Code-Review10/10

Maintained10/10

Branch-ProtectionN/A

Assessed Jun 8, 2026

Timeline

Disclosed

Dec 5, 2018

First exploit

Dec 10, 2018

4 days after disclosure — rapid exploitation

Last updated

Apr 10, 2026

Identifiers

CVE-2018-1002105

GHSA-579h-mv94-g4gp

GO-2022-0792

Data from OSV.dev, enriched by O3 Security. Refreshed hourly.