CVE-2026-33314

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{"affected": [{"affectedData": [{"product": "pyload", "vendor": "pyload", "versions": [{"status": "affected", "version": "< 0.5.0b3.dev97"}]}], "source": "security-advisories@github.com"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:pyload-ng_project:pyload-ng:*:*:*:*:*:python:*:*", "matchCriteriaId": "49DB5560-08BC-47E1-ADC3-729D9746159F", "versionEndExcluding": "0.5.0b3.dev97", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, a Host Header Spoofing vulnerability in the @local_check decorator allows unauthenticated external attackers to bypass local-only restrictions. This grants access to the Click'N'Load API endpoints, enabling attackers to remotely queue arbitrary downloads, leading to Server-Side Request Forgery (SSRF) and Denial of Service (DoS). This issue has been patched in version 0.5.0b3.dev97."}, {"lang": "es", "value": "pyLoad es un gestor de descargas de c\u00f3digo abierto y gratuito escrito en Python. Antes de la versi\u00f3n 0.5.0b3.dev97, una vulnerabilidad de suplantaci\u00f3n de encabezado de host en el decorador @local_check permite a atacantes externos no autenticados eludir las restricciones de solo acceso local. Esto otorga acceso a los puntos finales de la API de Click'N'Load, lo que permite a los atacantes poner en cola descargas arbitrarias de forma remota, lo que lleva a la falsificaci\u00f3n de petici\u00f3n del lado del servidor (SSRF) y a la denegaci\u00f3n de servicio (DoS). Este problema ha sido parcheado en la versi\u00f3n 0.5.0b3.dev97."}], "id": "CVE-2026-33314", "lastModified": "2026-06-17T10:37:18.447", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-33314", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-03-26T19:33:35.949774Z", "version": "2.0.3"}}]}, "published": "2026-03-24T20:16:27.690", "references": [{"source": "security-advisories@github.com", "tags": ["Exploit", "Vendor Advisory"], "url": "https://github.com/pyload/pyload/security/advisories/GHSA-q485-cg9q-xq2r"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-287"}, {"lang": "en", "value": "CWE-346"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,0.5.0b3.dev97)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "matching", "scores": [{"score": 100.0, "source": "matching"}]}, "original": {"product": "pyload", "source": "cna", "vendor": "pyload"}, "product": "pyload", "vendor": "pyload"}], "analysis": {"en": {"generated_at": "2026-03-26T16:06:55.532744+00:00", "value": {"mitigation_remediation": ["Upgrade pyload-ng to version 0.5.0b3.dev97 or later.", "If an upgrade is not immediately possible, block external access to the Click'N'Load API endpoints using firewall rules or IP whitelisting.", "Monitor API logs for abnormal download requests or excessive activity that may indicate exploitation."], "summary": {"action": "Apply Patch", "impact": "Server\u2011Side Request Forgery"}, "threat_synthesis": {"affected_systems": "pyload-ng, the open\u2011source download manager, is affected for all releases older than 0.5.0b3.dev97. Vulnerable installations run the Python implementation of the tool and have not applied the official patch that addresses the host\u2011header validation flaw.", "description_and_impact": "The pyload-ng download manager includes a Host Header Spoofing weakness in the @local_check decorator. An unauthenticated external attacker can supply a forged Host header to bypass the intended local\u2011only restriction, exposing the Click'N'Load API endpoints. Through these endpoints the attacker can trigger arbitrary download requests to remote resources, which results in Server\u2011Side Request Forgery (SSRF) and can lead to Denial of Service conditions on the host. This vulnerability is rooted in Weak Authentication (CWE\u2011287) and Improper Origin Validation (CWE\u2011346).", "risk_and_exploitability": "The CVSS v3.1 score of 6.5 indicates a medium severity risk. With an EPSS probability of less than 1%, the likelihood of widespread exploitation is low, and the issue is not listed in the CISA KEV catalog. Attackers can exploit the flaw by sending HTTP requests with a spoofed Host header from an external network, targeting the /clicknload API endpoints. No user authentication or elevated privileges are required, and the impact includes the ability to force the service to download arbitrary data and potentially disrupt service availability."}}}}, "created": "2026-03-25T11:46:27.626241+00:00", "updated": "2026-03-27T09:20:43.258893+00:00", "vendors": ["pyload", "pyload$PRODUCT$pyload"]}