CVE-2026-61610: CWE-284: Improper Access Control in LycheeOrg Lychee
Description
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.
CVSS v4.0
Score 2.3low
Affected software
LycheeOrg
Lychee
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-07-10T17:36:04.597Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad103fb2cdf04f6564753a4
Added to database: 10/15/2026, 16:48:59 UTC
Last updated: 10/15/2026, 16:48:59 UTC
Views: 1
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