{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-61838","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","state":"PUBLISHED","assignerShortName":"GitHub_M","dateReserved":"2026-07-10T20:28:17.512Z","datePublished":"2026-10-15T16:32:37.392Z","dateUpdated":"2026-10-15T18:31:13.925Z"},"containers":{"cna":{"title":"Lychee: Album password bypass in ZIP downloads","problemTypes":[{"descriptions":[{"cweId":"CWE-285","lang":"en","description":"CWE-285: Improper Authorization","type":"CWE"}]},{"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":"PRESENT","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","subAvailabilityImpact":"NONE","baseScore":8.2,"baseSeverity":"HIGH","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"}}],"references":[{"name":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-735c-2wqc-x29r","tags":["x_refsource_CONFIRM"],"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-735c-2wqc-x29r"},{"name":"https://github.com/LycheeOrg/Lychee/pull/4459","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/pull/4459"},{"name":"https://github.com/LycheeOrg/Lychee/commit/4366dd0e721126dffe29659afec93aee9c1db711","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/commit/4366dd0e721126dffe29659afec93aee9c1db711"},{"name":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.3","tags":["x_refsource_MISC"],"url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.3"}],"affected":[{"vendor":"LycheeOrg","product":"Lychee","versions":[{"version":"< 7.6.3","status":"affected"}]}],"providerMetadata":{"orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","shortName":"GitHub_M","dateUpdated":"2026-10-15T16:32:37.392Z"},"descriptions":[{"lang":"en","value":"Lychee is a free, open-source photo-management tool. Prior to 7.6.3, GET /api/v2/Zip authorizes album and photo archives through AlbumPolicy::canDownload() and PhotoPolicy::canDownload() without first enforcing AlbumPolicy::canAccess(). For a public, password-protected album with grants_download enabled, an unauthenticated attacker who knows the shared album identifier can download a ZIP archive without supplying the password or unlocking the album, even though browsing endpoints deny access. The archive exposes the album's photos and can include full-resolution originals and associated metadata when grants_full_photo_access is enabled. This issue is fixed in version 7.6.3."}],"source":{"advisory":"GHSA-735c-2wqc-x29r","discovery":"UNKNOWN"}},"adp":[{"references":[{"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-735c-2wqc-x29r","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-15T18:30:52.301216Z","id":"CVE-2026-61838","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":"2026-10-15T18:31:13.925Z"}}]}}