CVE-2026-29954
Last modified
CVE-2026-29954 is a high-severity vulnerability rated 7.6/10 on the CVSS scale. 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. EPSS estimates a 0.27% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Cloudark | Kubeplus | 4.1.4 |
References
- https://gist.github.com/b0b0haha/33baea60fd2a847f11f1fb02e43c64c0Exploit, Mitigation, Third Party Advisory
- https://github.com/b0b0haha/CVE-2026-29954/blob/main/README.mdExploit, Mitigation, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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Scan your code nowSource: NVD / NIST