CVE-2026-32737

CRITICAL

Romeo's invalid NetworkPolicy enables a malicious actor to pivot into another namespace

Title source: cna
STIX 2.1

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.

Scores

CVSS v3 10.0
EPSS 0.0002
EPSS Percentile 6.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact partial

Details

CWE
CWE-284
Status published
Products (2)
ctfer-io/romeo < 0.2.1 (2 CPE variants)
ctfer-io/romeo 0 - 0.2.1Go
Published Mar 18, 2026
Tracked Since Mar 19, 2026