CVE-2026-62679

Lychee is a free, open-source photo-management tool. Prior to 7.6.4, SecurePathController, which serves GET /image/{path}, concatenates the attacker-controlled path with the local storage root and performs a string-prefix check before canonicalizing dot segments. Under the supported non-default configuration with temporary_image_link_enabled enabled, temporary_image_link_when_logged_in disabled, and secure_image_link_enabled disabled, any authenticated user can submit encoded traversal segments that pass the prefix check and are later resolved by filesystem operations. This permits reading files available to the web process, including application configuration and other users' private images, and disclosed APP_KEY or database credentials can enable further compromise. This issue is fixed in version 7.6.4.

CVSS

No CVSS.

References

Link	Resource
https://github.com/LycheeOrg/Lychee/commit/f4553f6e0145ec4e02360c6121bd169e87b5d05f
https://github.com/LycheeOrg/Lychee/pull/4465
https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.4
https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-j5ff-34x8-xxqg

Configurations

No configuration.

History

15 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 17:17

Updated : 2026-10-16 18:17

NVD link : CVE-2026-62679

Mitre link : CVE-2026-62679

CVE.ORG link : CVE-2026-62679

JSON object : View

Products Affected

No product.

CWE

CWE-22

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

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