CVE-2026-77466

Lychee is a free, open-source photo-management tool. Prior to 7.7.0, Lychee hides the Omnipay Dummy test provider from the checkout options in production through OmnipayFactory::get_supported_providers(), but CreateSessionRequest validates only that the submitted provider is an OmnipayProviderType and does not enforce OmnipayProviderType::isAllowed(). A buyer, including a guest when webshop_allow_guest_checkout is enabled, can submit Dummy directly and complete the test gateway flow without a real payment. When webshop_auto_fulfill_enabled is enabled, OrderCompletedListener::fullfillOrder() can then release the purchasable item. The issue requires access to the Supporter or Pro webshop and an enabled purchasable item. Testing bypassed the closed-source license middleware, so whether the real license layer performs additional payment-provider validation remains unverified. The payment finalize status check itself is not the root cause. This issue is fixed in version 7.7.0.

CVSS

No CVSS.

References

Link	Resource
https://github.com/LycheeOrg/Lychee/commit/8b73656f920c682862b9199acc87fbaf72ee5a90
https://github.com/LycheeOrg/Lychee/pull/4507
https://github.com/LycheeOrg/Lychee/releases/tag/v7.7.0
https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3
https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3

Configurations

No configuration.

History

15 Oct 2026, 18:17

Type	Values Removed	Values Added
References	~~() https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3 -~~	() https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-5wh2-hg7q-6hv3 -

15 Oct 2026, 17:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-15 17:17

Updated : 2026-10-15 21:08

NVD link : CVE-2026-77466

Mitre link : CVE-2026-77466

CVE.ORG link : CVE-2026-77466

JSON object : View

Products Affected

No product.

CWE

CWE-20

Improper Input Validation

CWE-184

Incomplete List of Disallowed Inputs

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