PoC Index

CVE-2026-29954

HIGH 7.6EPSS 0.3%

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 v3.1
7.6 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
EPSS
0.27% chance of exploitation in the next 30 days, 19th percentile
Published
2026-03-30

Proof-of-concept exploits (1)

References

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