CVE-2026-77468
CVE-2026-77468 · Lychee: Missing Authentication for Critical Function and Allocation of Resources Without Limits or Throttling on /docs/api
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
CVSS 6.9 · Medium · EPSS 0.4%
- Published
- Updated
Affected products and versions
lychee
- Versions
- < 7.7.0: Affected
No fix published
Original sources
- https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-xg8r-4pm3-2h4f
- https://github.com/LycheeOrg/Lychee/pull/4510
- https://github.com/LycheeOrg/Lychee/commit/711f4290f53cd980cd5baa2434c734d364e9fe33
- https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0
- https://nvd.nist.gov/vuln/detail/CVE-2026-77468