CVE-2026-29955
CVE-2026-29955 is a high-severity vulnerability in Cloudark Kubeplus with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 2% (80th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-22037
- Weakness: CWE-94
- Affected product: Cloudark Kubeplus
- Published:
- Last modified:
Description
The `/registercrd` endpoint in KubePlus 4.14 in the kubeconfiggenerator component is vulnerable to command injection. The component uses `subprocess.Popen()` with `shell=True` parameter to execute shell commands, and the user-supplied `chartName` parameter is directly concatenated into the command string without any sanitization or validation. An attacker can inject arbitrary shell commands by crafting a malicious `chartName` parameter value.
Frequently asked questions
- What is CVE-2026-29955?
- The `/registercrd` endpoint in KubePlus 4.14 in the kubeconfiggenerator component is vulnerable to command injection. The component uses `subprocess.Popen()` with `shell=True` parameter to execute shell commands, and the user-supplied `chartName` parameter is directly concatenated into the command string without any sanitization or validation. An attacker can inject arbitrary shell commands by crafting a malicious `chartName` parameter value.
- How severe is CVE-2026-29955?
- CVE-2026-29955 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2026-29955 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (80th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2026-29955?
- CVE-2026-29955 affects Cloudark Kubeplus. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2026-29955?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2026-29955 have an EU (EUVD) identifier?
- Yes. CVE-2026-29955 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22037.
- When was CVE-2026-29955 published?
- CVE-2026-29955 was published on 2026-04-13 and last updated on 2026-06-17.
References
- https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163
- https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.md
Affected products (1)
- cpe:2.3:a:cloudark:kubeplus:*:*:*:*:*:*:*:*
More vulnerabilities in Cloudark Kubeplus
- CVE-2026-29954 — High (CVSS 7.6): In KubePlus 4.1.4, the mutating webhook and kubeconfiggenerator components have an SSRF vulnerability when processing…
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