{"schema":"threatline.record/2","record":{"id":"CVE-2026-57569","aliases":["GHSA-vj35-v9x5-vrxh"],"summary":"Lychee: Distinct post-fix SSRF variant in Photo::fromUrl due to missing IP pinning after DNS-based validation","details":"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.","categories":["Unclassified"],"product":"Lychee","vendor":"LycheeOrg","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-57569","source_modified_at":"2026-10-15T17:58:10.062Z","fetched_at":"2026-10-23T18:48:36.087640Z","product":"Lychee","vendor":"LycheeOrg","versions":[{"version":"< 7.6.0","status":"affected"}],"defaultStatus":null}],"fixed_versions":[],"cvss":2.3,"severity":"Low","kev":{"listed":false},"epss":{"probability":0.00241,"percentile":0.14453,"score_date":"2026-10-23"},"published_at":"2026-10-15T16:24:34.652Z","modified_at":"2026-10-15T17:58:10.062Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-57569","fetched_at":"2026-10-23T18:48:36.087640Z","source_modified_at":"2026-10-15T17:58:10.062Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-57569","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-vj35-v9x5-vrxh","tags":["exploit"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/pull/4344","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/commit/a5f23e314f1a933d31aa650616bf9cd84bd0407e","tags":["x_refsource_MISC"]},{"source":"CVE List","url":"https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.0","tags":["x_refsource_MISC"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"poc","automatable":"no","technical_impact":"partial","assessed_at":"2026-10-15T17:57:45.409797Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-15T17:58:10.062Z","content_hash":"986ab6ede8fe685fd8e7c6ba229b17984a50c87bcf07a32fb3537186e730e1f8"}}