{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-33511","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-03-20T16:59:08.890Z","datePublished":"2026-03-24T18:56:08.886Z","dateUpdated":"2026-03-25T14:28:19.605Z"},"containers":{"cna":{"title":"pyload-ng: Authentication Bypass via Host Header Injection in ClickNLoad","problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639: Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"LOW","subConfidentialityImpact":"NONE","subIntegrityImpact":"LOW","subAvailabilityImpact":"NONE","baseScore":8.8,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:L/SC:N/SI:L/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/pyload/pyload/security/advisories/GHSA-g5j2-gxqh-x7pw","tags":["x_refsource_CONFIRM"],"url":"https://github.com/pyload/pyload/security/advisories/GHSA-g5j2-gxqh-x7pw"}],"affected":[{"vendor":"pyload","product":"pyload","versions":[{"version":">= 0.4.20, < 0.5.0b3.dev97","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-03-24T18:56:08.886Z"},"descriptions":[{"lang":"en","value":"pyLoad is a free and open-source download manager written in Python. From version 0.4.20 to before version 0.5.0b3.dev97, the local_check decorator in pyLoad's ClickNLoad feature can be bypassed by any remote attacker through HTTP Host header spoofing. This allows unauthenticated remote users to access localhost-restricted endpoints, enabling them to inject arbitrary downloads, write files to the storage directory, and execute JavaScript code. This issue has been patched in version 0.5.0b3.dev97."}],"source":{"advisory":"GHSA-g5j2-gxqh-x7pw","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/pyload/pyload/security/advisories/GHSA-g5j2-gxqh-x7pw","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-03-25T13:59:02.731679Z","id":"CVE-2026-33511","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-03-25T14:28:19.605Z"}}]}}