{"dataType": "CVE_RECORD", "cveMetadata": {"state": "PUBLISHED", "cveId": "CVE-2026-29955", "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "assignerShortName": "mitre", "dateUpdated": "2026-04-15T17:44:09.045Z", "dateReserved": "2026-03-04T00:00:00.000Z", "datePublished": "2026-04-13T00:00:00.000Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca", "shortName": "mitre", "dateUpdated": "2026-04-13T17:58:35.361Z"}, "descriptions": [{"lang": "en", "value": "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."}], "affected": [{"vendor": "n/a", "product": "n/a", "versions": [{"version": "n/a", "status": "affected"}]}], "references": [{"url": "https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163"}, {"url": "https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.md"}], "problemTypes": [{"descriptions": [{"type": "text", "lang": "en", "description": "n/a"}]}]}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-94", "lang": "en", "description": "CWE-94 Improper Control of Generation of Code ('Code Injection')"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 8.8, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-04-15T17:44:05.981593Z", "id": "CVE-2026-29955", "options": [{"Exploitation": "poc"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-04-15T17:44:09.045Z"}}]}, "dataVersion": "5.2"}

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{"configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:cloudark:kubeplus:*:*:*:*:*:*:*:*", "matchCriteriaId": "48BB76F0-69A4-4753-A746-AFB6063ED17A", "versionEndIncluding": "4.2.0", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-29955", "lastModified": "2026-05-01T15:04:11.133", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 8.8, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 5.9, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-04-13T19:16:39.137", "references": [{"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://gist.github.com/b0b0haha/f011fdd69adc3ae272a4e3b99af90163"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://github.com/b0b0haha/CVE-2026-29955/blob/main/README.md"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-94"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,4.14]"}}], "enrichment": {"confidence": 100.0, "confidence_source": "manual", "scores": [{"score": 100.0, "source": "manual"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "kubeplus", "vendor": "cloudark"}], "analysis": {"en": {"generated_at": "2026-04-16T09:13:14.222576+00:00", "value": {"mitigation_remediation": ["Request a vendor\u2011issued patch for KubePlus 4.14 and apply it as soon as possible.", "If a patch is unavailable, restrict access to the /registercrd endpoint to trusted administrators only, ideally behind authentication and firewall rules.", "Implement input validation or use safe API calls to eliminate shell usage, e.g. replace subprocess.Popen(shell=True) with arguments that avoid shell interpretation.", "Run the kubeconfiggenerator service with the minimum privileges required to perform its functions to limit damage if the endpoint is compromised."], "summary": {"action": "Apply patch", "impact": "Command injection allows arbitrary shell execution"}, "threat_synthesis": {"affected_systems": "KubePlus version 4.14, specifically the kubeconfiggenerator component whose /registercrd API endpoint accepts a chartName parameter.", "description_and_impact": "The /registercrd endpoint in KubePlus 4.14\u2019s kubeconfiggenerator component processes user\u2011supplied chartName data by directly concatenating it into a shell command executed via subprocess.Popen with shell=True. This lack of input sanitization allows an attacker to embed malicious shell commands, enabling unrestricted code execution on the host system. The weakness is a classic command injection.", "risk_and_exploitability": "The vulnerability has a CVSS score of 8.8, indicating high severity, but an EPSS score of less than 1% shows low exploitation probability. It is not in the KEV catalog. The likely attack vector is remote; an attacker must be able to send a crafted HTTP request to the /registercrd endpoint, which may be available to privileged users or exposed on the internet. If exploited, the attacker gains full control over the vulnerable service."}}}}, "created": "2026-04-14T16:21:46.786139+00:00", "title": "KubePlus 4.14 Command Injection via /registercrd Endpoint", "updated": "2026-04-16T09:15:30.991892+00:00", "vendors": ["cloudark", "cloudark$PRODUCT$kubeplus"]}