CVE-2026-33438

{"id": "CVE-2026-33438", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 2.8}]}, "published": "2026-03-26T17:16:40.657", "references": [{"url": "https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-3932-2rfq-87xm", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}, {"url": "https://github.com/Stirling-Tools/Stirling-PDF/security/advisories/GHSA-3932-2rfq-87xm", "tags": ["Exploit", "Vendor Advisory"], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-770"}]}], "descriptions": [{"lang": "en", "value": "Stirling-PDF is a locally hosted web application that allows you to perform various operations on PDF files. Versions starting in 2.1.5 and prior to 2.5.2 have Denial of Service (DoS) vulnerability in the Stirling-PDF watermark functionality (`/api/v1/security/add-watermark` endpoint). The vulnerability allows authenticated users to cause resource exhaustion and server crashes by providing extreme values for the `fontSize` and `widthSpacer` parameters. Version 2.5.2 patches the issue."}, {"lang": "es", "value": "Stirling-PDF es una aplicaci\u00f3n web alojada localmente que permite realizar diversas operaciones en archivos PDF. Las versiones a partir de la 2.1.5 y anteriores a la 2.5.2 tienen una vulnerabilidad de denegaci\u00f3n de servicio (DoS) en la funcionalidad de marca de agua de Stirling-PDF (punto de conexi\u00f3n '/api/v1/security/add-watermark'). La vulnerabilidad permite a usuarios autenticados causar agotamiento de recursos y ca\u00eddas del servidor al proporcionar valores extremos para los par\u00e1metros 'fontSize' y 'widthSpacer'. La versi\u00f3n 2.5.2 corrige el problema."}], "lastModified": "2026-03-31T21:37:52.353", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:stirling:stirling_pdf:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "19BCD243-291F-4708-83E5-CF7EF5041B9D", "versionEndExcluding": "2.5.2", "versionStartIncluding": "2.1.5"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}