CVE-2026-77468

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

State
Published
Severity
6.9 Medium
Published
Oct 15, 2026
Updated
Oct 28, 2026
Reserved
Aug 20, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.06.9 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:NGitHub_M

Weaknesses

  • CWE-770 Allocation of Resources Without Limits or Throttling

Affected Products

ProductVersions
LycheeLycheeOrg
  • < 7.7.0Affected

References

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