CVE-2026-77468

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 74/100
Published: 2026-10-15 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: None
VC: None
VI: None
VA: Low

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.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
LycheeOrg Lychee < 7.7.0

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

6.9 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

EPSS — Exploitation Probability

0.37%
Raw Score 0.003710
Percentile 31.0%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00371
2026-10-28
0.00371

Intelligence Sources

mitre ref →
nvd ref →