SSRF in Cloudark Kubeplus
CVE-2026-29954
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.
EPSS: 0.003 (18.8th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N.
Affected products
- Cloudark Kubeplus — versions 4.1.4
- N/a — versions n/a
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cve@mitre.org (Exploit, Third Party Advisory, Mitigation)
- cve@mitre.org (Exploit, Third Party Advisory, Mitigation)
Frequently asked questions
- What is CVE-2026-29954?
- CVE-2026-29954 is a high-severity vulnerability in Cloudark Kubeplus, classified under Argument Injection. CVSS score: 7.6/10. Published 2026-03-30.
- How severe is CVE-2026-29954?
- High severity. CVSS v3 base score is 7.6 out of 10.
- Is CVE-2026-29954 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.