High severityNVD Advisory· Published Feb 22, 2022· Updated Apr 22, 2025
Privilege escalation using hop-by-hop Connection header
CVE-2022-23652
Description
capsule-proxy is a reverse proxy for Capsule Operator which provides multi-tenancy in Kubernetes. In versions prior to 0.2.1 an attacker with a proper authentication mechanism may use a malicious Connection header to start a privilege escalation attack towards the Kubernetes API Server. This vulnerability allows for an exploit of the cluster-admin Role bound to capsule-proxy. There are no known workarounds for this issue.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/clastix/capsule-proxyGo | < 0.2.1 | 0.2.1 |
Affected products
2- Range: < 0.2.1
Patches
Vulnerability mechanics
Generated on May 9, 2026. Inputs: CWE entries + fix-commit diffs from this CVE's patches. Citations validated against bundle.
References
5- github.com/advisories/GHSA-9cwv-cppx-mqjmghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2022-23652ghsaADVISORY
- github.com/clastix/capsule-proxy/commit/efe91f68ebf8a9e3d21491dc57da7b8a746415d8ghsax_refsource_MISCWEB
- github.com/clastix/capsule-proxy/issues/188ghsax_refsource_MISCWEB
- github.com/clastix/capsule-proxy/security/advisories/GHSA-9cwv-cppx-mqjmghsax_refsource_CONFIRMWEB
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