CVE-2026-32737 Romeo's invalid NetworkPolicy enables a malicious actor to pivot into another namespace
A misconfigured NetworkPolicy in Romeo allows attackers to pivot from a hardened namespace to other pods, enabling lateral movement.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-32737?
CVE-2026-32737 is a high-severity vulnerability in ctfer-io romeo, published on 18 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2026-32737?
3 open source packages ship an affected version, including github.com/ctfer-io/romeo/environment/deploy. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
github.com/ctfer-io/romeo/environment/deploy Go | All versions | None |
github.com/ctfer-io/romeo/environment/deploy Go | All versions | 0.2.1 |
github.com/ctfer-io/romeo/environment/deploy Go | All versions | 0.2.1 |
Products include Ctfer-Io Romeo.
How do I fix CVE-2026-32737?
Upgrade github.com/ctfer-io/romeo/environment/deploy to 0.2.1 or later.
Is CVE-2026-32737 being exploited?
There is no known exploitation of CVE-2026-32737 in the wild and no public exploit code.
Other vulnerabilities in ctfer-io romeo
Sources
Also known as GHSA-fgm3-q9r5-43v9, GO-2026-4714.