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OpenAdvisories
Medium · 6.9 CVE-2026-77468 EUVD-2026-102195

Lychee: Missing Authentication for Critical Function and Allocation of Resources Without Limits or Throttling on /docs/api

Published Oct 15, 2026 · Updated Oct 28, 2026 · Assigned by GitHub_M

Description

Lychee is a free, open-source photo-management tool. Prior to 7.7.0, GET /docs/api exposes the Scramble-generated OpenAPI documentation configured by config/scramble.php to unauthenticated callers after installation, with observed response size and latency suggesting that the schema is regenerated without an application-level cache. A remote attacker can repeatedly request the unthrottled route to consume server CPU and obtain a detailed map of the API surface and parameter schema. This issue is fixed in version 7.7.0.

Affected products

VendorProductAffectedFixed
LycheeOrg Lychee < 7.7.0 —

References