{"id":"CVE-2026-61610","title":"Lychee is a free, open-source photo-management tool","summary":"Lychee is a free, open-source photo-management tool. Prior to 7.6.1, when photos_star_visibility is set to anonymous, POST /api/v2/Photo::highlight can fetch and modify a photo without confirming that the caller can see it. BaseApiReques…","severity":"low","cvss":2.3,"cvssVector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-284"],"vendor":"LycheeOrg","product":"Lychee","affected":["Lychee < 7.6.1"],"published":"2026-10-15","updated":"2026-10-15","sourceUpdated":"2026-10-15T17:17:26.393","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-61610","references":[{"url":"https://github.com/LycheeOrg/Lychee/commit/fe07567c176bbdcda7b276bb6d664dfcd47a9b00","label":"security-advisories@github.com"},{"url":"https://github.com/LycheeOrg/Lychee/pull/4449","label":"security-advisories@github.com"},{"url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.1","label":"security-advisories@github.com"},{"url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-qcqq-p4pq-7r77","label":"security-advisories@github.com"}],"tags":["nvd","cve.org"],"cvssSource":"cna","ingestedAt":"2026-10-15T17:18:20.098Z","slug":"CVE-2026-61610","body":"## Overview\n\nLychee is a free, open-source photo-management tool. Prior to 7.6.1, when photos_star_visibility is set to anonymous, POST /api/v2/Photo::highlight can fetch and modify a photo without confirming that the caller can see it. BaseApiRequest::validateResolved() invokes SetPhotosHighlightedRequest::processValidatedValues() before authorization, and PhotoPolicy::canHighlight() returns true for anonymous callers without a canSee check. An unauthenticated attacker who can guess photo identifiers can distinguish existing private photos through differing success and not-found responses and can change their is_highlighted state, including for photos in private or password-protected albums. The issue is limited to installations using the non-default anonymous star-visibility setting. This issue is fixed in version 7.6.1.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":13,"depthScoreParts":{"impact":12.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}