CVE-2026-34406

{"id": "CVE-2026-34406", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-34406", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-04-03T16:37:51.859124Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"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"}, "impactScore": 5.9, "exploitabilityScore": 2.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "LOW", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "APTRS", "product": "APTRS", "versions": [{"status": "affected", "version": "< 2.0.1"}]}]}], "published": "2026-03-31T22:16:18.990", "references": [{"url": "https://github.com/APTRS/APTRS/commit/d1f1b3a5d1953082af8e075712ca29742e900d56", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/APTRS/APTRS/releases/tag/2.0.1", "tags": ["Release Notes"], "source": "security-advisories@github.com"}, {"url": "https://github.com/APTRS/APTRS/security/advisories/GHSA-gv25-wp4h-9c35", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-915"}]}, {"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "descriptions": [{"lang": "en", "value": "APTRS (Automated Penetration Testing Reporting System) is a Python and Django-based automated reporting tool designed for penetration testers and security organizations. Prior to version 2.0.1, the edit_user endpoint (POST /api/auth/edituser/<pk>) allows Any user who can reach that endpoint and submit crafted permission to escalate their own account (or any other account) to superuser by including \"is_superuser\": true in the request body. The root cause is that CustomUserSerializer explicitly includes is_superuser in its fields list but omits it from read_only_fields, making it a writable field. The edit_user view performs no additional validation to prevent non-superusers from modifying this field. Once is_superuser is set to true, gaining unrestricted access to all application functionality without requiring re-authentication. This issue has been patched in version 2.0.1."}, {"lang": "es", "value": "APTRS (Automated Penetration Testing Reporting System) es una herramienta de informes automatizada basada en Python y Django, dise\u00f1ada para probadores de penetraci\u00f3n y organizaciones de seguridad. Antes de la versi\u00f3n 2.0.1, el endpoint edit_user (POST /API/auth/edituser/<pk>) permite a cualquier usuario que pueda alcanzar ese endpoint y enviar un permiso manipulado escalar su propia cuenta (o cualquier otra cuenta) a superusuario al incluir 'is_superuser': true en el cuerpo de la solicitud. La causa ra\u00edz es que CustomUserSerializer incluye expl\u00edcitamente is_superuser en su lista de campos pero lo omite de read_only_fields, convirti\u00e9ndolo en un campo editable. La vista edit_user no realiza ninguna validaci\u00f3n adicional para evitar que los no-superusuarios modifiquen este campo. Una vez que is_superuser se establece en true, se obtiene acceso sin restricciones a toda la funcionalidad de la aplicaci\u00f3n sin requerir re-autenticaci\u00f3n. Este problema ha sido parcheado en la versi\u00f3n 2.0.1."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:aptrs:aptrs:*:*:*:*:*:python:*:*", "vulnerable": true, "matchCriteriaId": "FE83DFB0-C9D9-4F10-A3DA-901FFBCDCC6D", "versionEndExcluding": "2.0.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}