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CVE-2026-32737— Romeo's invalid NetworkPolicy enables a malicious actor to pivot into another namespace

Quick assessment

Affected
ctfer-io romeo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Romeo是CTFer.io开源的一个Go应用代码覆盖率计算工具。 Romeo 0.2.1之前版本存在访问控制错误漏洞，该漏洞源于网络策略配置不当，可能导致横向移动。

AI Predicted 5.4 Difficulty: Easy EPSS 0.51% · P42

Possible ATT&CK Techniques 1 AI

T1046 · Network Service Discovery
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I. Basic Information for CVE-2026-32737

Vulnerability Information
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Vulnerability Title
Romeo's invalid NetworkPolicy enables a malicious actor to pivot into another namespace
Source: CVE Program / CVE List V5
Vulnerability Description
Romeo gives the capability to reach high code coverage of Go ≥1.20 apps by helping to measure code coverage for functional and integration tests within GitHub Actions. Prior to version 0.2.1, due to a mis-written NetworkPolicy, a malicious actor can pivot from the "hardened" namespace to any Pod out of it. This breaks the security-by-default property expected as part of the deployment program, leading to a potential lateral movement. Removing the `inter-ns` NetworkPolicy patches the vulnerability in version 0.2.1. If updates are not possible in production environments, manually delete `inter-ns` and update as soon as possible. Given one's context, delete the failing network policy that should be prefixed by `inter-ns-` in the target namespace.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H
Source: CVE Program / CVE List V5
Vulnerability Type
访问控制不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Romeo 访问控制错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Romeo是CTFer.io开源的一个Go应用代码覆盖率计算工具。 Romeo 0.2.1之前版本存在访问控制错误漏洞，该漏洞源于网络策略配置不当，可能导致横向移动。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ctfer-io romeo < 0.2.1 -

II. Public POCs for CVE-2026-32737

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III. Intelligence Information for CVE-2026-32737

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Patches & Fixes for CVE-2026-32737 (1)

Vendor Advisories for CVE-2026-32737 (1)

IV. Related Vulnerabilities

Same product: romeo
Same vendor: ctfer-io
Same weakness: CWE-284

V. Comments for CVE-2026-32737

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