CVE-2026-33029

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This issue has been patched in version 2.3.4."}, {"lang": "es", "value": "Nginx UI es una interfaz de usuario web para el servidor web Nginx. Antes de la versi\u00f3n 2.3.4, una vulnerabilidad de validaci\u00f3n de entrada en la configuraci\u00f3n de logrotate permite a un usuario autenticado causar una completa denegaci\u00f3n de servicio (DoS). Al enviar un n\u00famero entero negativo para el intervalo de rotaci\u00f3n, el backend entra en un bucle infinito o un estado no v\u00e1lido, lo que hace que la interfaz web no responda. Este problema se ha corregido en la versi\u00f3n 2.3.4."}], "id": "CVE-2026-33029", "lastModified": "2026-06-17T10:36:48.687", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}, {"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "cvssMetricV40": [{"cvssData": {"Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "Safety": "NOT_DEFINED", "attackComplexity": "LOW", "attackRequirements": "NONE", "attackVector": "NETWORK", "availabilityRequirement": "NOT_DEFINED", "baseScore": 6.9, "baseSeverity": "MEDIUM", "confidentialityRequirement": "NOT_DEFINED", "exploitMaturity": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "privilegesRequired": "HIGH", "providerUrgency": "NOT_DEFINED", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "version": "4.0", "vulnAvailabilityImpact": "HIGH", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "NONE", "vulnerabilityResponseEffort": "NOT_DEFINED"}, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33029", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-04-01T18:16:47.312149Z", "version": "2.0.3"}}]}, "published": "2026-03-30T18:16:19.097", "references": [{"source": "security-advisories@github.com", "tags": ["Product", "Release Notes"], "url": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.3.4"}, {"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-cp8r-8jvw-v3qg"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-20"}], "source": "security-advisories@github.com", "type": "Secondary"}, {"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,2.3.4)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "nginx-ui", "source": "cna", "vendor": "0xJacky"}, "product": "nginx-ui", "vendor": "0xjacky"}], "analysis": {"en": {"generated_at": "2026-04-02T22:08:05.756899+00:00", "value": {"mitigation_remediation": ["Check the currently installed Nginx UI version", "Upgrade the application to version 2.3.4 or newer", "Restart the Nginx UI service to apply the update", "Verify that the logrotate interval field only accepts positive integers", "Monitor logs for repeated configuration submission attempts"], "summary": {"action": "Immediate Patch", "impact": "Denial of Service \u2013 web interface becomes unresponsive"}, "threat_synthesis": {"affected_systems": "The product affected is Nginx UI released by 0xJacky. All releases older than version 2.3.4 are vulnerable. The issue was fixed in release 2.3.4, so upgrades to that version or later remove the risk.", "description_and_impact": "The vulnerability resides in the logrotate configuration of Nginx UI. Before version 2.3.4 the backend does not validate the rotation interval field. Submitting a negative integer causes an infinite loop or an unusable state, making the web interface unresponsive. The weakness is a classic input validation flaw (CWE\u201120). The impact is limited to denial of service; no disclosure or execution of arbitrary code is possible from this flaw.", "risk_and_exploitability": "The CVSS score of 6.9 indicates moderate severity. The EPSS score of less than 1% suggests a low probability of exploitation in the wild, and the vulnerability is not listed in the CISA KEV catalog. However, exploitation requires authentication as the attacker must submit a configuration change. If an attacker gains authentication, they can cause a service outage. The overall risk remains moderate, with the primary concern being availability compromise."}}}}, "created": "2026-03-30T20:55:20.655627+00:00", "updated": "2026-04-03T09:38:09.823094+00:00", "vendors": ["0xjacky", "0xjacky$PRODUCT$nginx-ui"]}