CVE-2026-29954

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Summary

CVECVE-2026-29954
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-03-30 17:16:15 UTC
Updated2026-04-01 14:24:21 UTC
DescriptionIn 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.

Risk And Classification

Primary CVSS: v3.1 7.6 HIGH from ADP

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

EPSS: 0.000270000 probability, percentile 0.075650000 (date 2026-04-02)

Problem Types: CWE-88 | CWE-918 | n/a | CWE-918 CWE-918 Server-Side Request Forgery (SSRF) | CWE-88 CWE-88 Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED7.6HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary7.6HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
Low
Availability
None

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
gist.github.com/b0b0haha/33baea60fd2a847f11f1fb02e43c64c0 [email protected] gist.github.com
github.com/b0b0haha/CVE-2026-29954/blob/main/README.md [email protected] github.com
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