# CVE-2026-29954: Server-side request forgery in n/a

> Attackers can exploit SSRF and command injection in KubePlus to execute arbitrary code or read sensitive data via malicious chart URLs.

- **Severity:** High 7.6 (`CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 30 Mar 2026
- **Updated:** 30 Mar 2026
- **Also known as:** GHSA-wh9f-6qqx-hhhv

## What is CVE-2026-29954?

CVE-2026-29954 is a high-severity server-side request forgery vulnerability in n/a, published on 30 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.

### Official description

In KubePlus 4.1.4, the mutating webhook and kubeconfiggenerator components have an SSRF vulnerability when processing the chartURL field of ResourceComposition resources. The field is only URL-encoded without validating the target address. More critically, when kubeconfiggenerator uses wget to download charts, the chartURL is directly concatenated into the command, allowing attackers to inject wget's `--header` option to achieve arbitrary HTTP header injection.

Weakness: CWE-918 (Server-Side Request Forgery), CWE-88 (Improper Neutralization of Argument Delimiters in a Command)

## Which versions are affected by CVE-2026-29954?

It affects 1 product.


Products: Cloudark Kubeplus.

## How do I fix CVE-2026-29954?

No fix has been published for CVE-2026-29954 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-29954 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29954 exists.

Public exploit code:

- https://github.com/b0b0haha/CVE-2026-29954 (github_poc): https://github.com/b0b0haha/CVE-2026-29954

## Other vulnerabilities in n/a

- [CVE-2026-29955](https://insights.sbomify.com/CVE-2026-29955/): Command injection in n/a (high 8.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-29954 and fix it if it is affected.

What it is: CVE-2026-29954 is a high-severity server-side request forgery vulnerability in n/a, published on 30 Mar 2026. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-29954 exists.

Affected product: n/a. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-29954/ (Markdown: https://insights.sbomify.com/CVE-2026-29954/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-29954
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-29954
- OSV: https://osv.dev/vulnerability/CVE-2026-29954

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-29954/
Summaries are generated and may contain mistakes; the official description above is the record.