Medium severity · published Oct 15, 2026
CVE-2026-77468
Lychee: Missing Authentication for Critical Function and Allocation of Resources Without Limits or Throttling on /docs/api
6.9
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
LY
Lychee · LycheeOrg
< 7.7.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-77468
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-77468
github.com
https://github.com/LycheeOrg/Lychee/commit/711f4290f53cd980cd5baa2434c734d364e9fe33
github.com
https://github.com/LycheeOrg/Lychee/pull/4510
github.com
https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0
github.com
https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-xg8r-4pm3-2h4f
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