{"id":"CVE-2026-57569","revision":"2d466e539fcf4420818afcbf756b881a","records":[{"revision":"2d466e539fcf4420818afcbf756b881a","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-57569","aliases":[],"title":"Lychee: Distinct post-fix SSRF variant in Photo::fromUrl due to missing IP pinning after DNS-based validation","description":"Lychee is a free, open-source photo-management tool. Prior to 7.6.0, the POST /api/v2/Photo::fromUrl flow validates a hostname and its resolved addresses in app/Rules/PhotoUrlRule.php but later passes the original hostname through app/Actions/Import/FromUrl.php to app/Image/Files/DownloadedFile.php for a separate fopen connection. An authenticated attacker who controls DNS responses can cause validation to observe a public address and the subsequent fetch to resolve the same hostname to a private or otherwise forbidden address. This DNS rebinding time-of-check to time-of-use mismatch bypasses the intended server-side request forgery protections and can reach services available from the Lychee server, subject to deployment and TLS behavior. This issue is fixed in version 7.6.0.","state":0,"publishedAt":"2026-10-15T16:24:34.652+00:00","modifiedAt":"2026-10-15T17:58:10.062+00:00","affected":[{"ecosystem":"Vendor product","name":"Lychee","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"LycheeOrg\",\n                    \"product\": \"Lychee\",\n                    \"versions\": [\n                        {\n                            \"version\": \"< 7.6.0\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:L","score":2.3,"severity":"LOW"}],"references":["https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-vj35-v9x5-vrxh","https://github.com/LycheeOrg/Lychee/pull/4344","https://github.com/LycheeOrg/Lychee/commit/a5f23e314f1a933d31aa650616bf9cd84bd0407e","https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.0"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-57569","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-57569","identifiers":["CVE-2026-57569"]},"retained":false,"historicalAffected":[]}],"coverage":[]}