CVE-2026-29954

CVSS 7.6 HIGHEPSS 0.3%CWE-88 CWE-918

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 7.6EPSS 0.3%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

30 Mar 2026Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

Affected products

n/a · n/a

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References

https://gist.github.com/b0b0haha/33baea60fd2a847f11f1fb02e43c64c0 https://github.com/b0b0haha/CVE-2026-29954/blob/main/README.md