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. 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.
{
"cna_assigner": "GitHub_M",
"cwe_ids": [
"CWE-284"
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61610.json"
}{
"extracted_events": [
{
"range": [
{
"introduced": "0"
},
{
"fixed": "7.6.1"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"range": [
{
"fixed": "fe07567c176bbdcda7b276bb6d664dfcd47a9b00"
}
],
"source": "REFERENCES_COMMIT"
},
{
"original_tag": "v7.6.1",
"range": [
{
"fixed": "7434aad416d3304fd0910059d43a6c87d5ccfca9"
}
],
"source": "REFERENCES_TAG"
}
]
}