CVE-2026-61610 Lychee: unauthenticated photo starring reveals existence of private photos when photos_star_visibility=anonymous
Unauthenticated attackers can reveal and modify private photos in Lychee when anonymous star visibility is enabled.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-61610?
CVE-2026-61610 is a low-severity missing authorization vulnerability in LycheeOrg Lychee, published on 15 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official 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.
Weakness: CWE-284
Which versions are affected by CVE-2026-61610?
How do I fix CVE-2026-61610?
No fix has been published for CVE-2026-61610 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-61610 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-61610 exists.
Sources
Also known as GHSA-qcqq-p4pq-7r77.