{"id":"CVE-2026-100870","summary":"Sylius before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 Admin Password Reset Poisoning via Host Header","details":"Sylius versions before 1.12.25, 1.13.17, 1.14.20, 2.1.16, and 2.2.9 build administrator password-reset links using the request Host header without validation, allowing unauthenticated attackers to redirect reset tokens to attacker-controlled domains. Attackers can request password resets for known administrator email addresses with forged Host headers to intercept valid reset tokens and take over administrator accounts.","aliases":["GHSA-77w3-2367-7xvq"],"modified":"2026-09-29T03:45:39.384270063Z","published":"2026-09-27T13:09:54.715Z","database_specific":{"cwe_ids":["CWE-640"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100870.json","cna_assigner":"VulnCheck"},"references":[{"type":"WEB","url":"https://packagist.org"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/100xxx/CVE-2026-100870.json"},{"type":"ADVISORY","url":"https://github.com/Sylius/Sylius/releases/tag/v2.2.9"},{"type":"ADVISORY","url":"https://github.com/Sylius/Sylius/security/advisories/GHSA-77w3-2367-7xvq"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-100870"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/sylius-before-1.12.25-1.13.17-1.14.20-2.1.16-and-2.2.9-admin-password-reset-poisoning-via-host-header"},{"type":"FIX","url":"https://github.com/Sylius/Sylius/commit/1255d75b20d3d88a5e5c8d46791504134c838480"},{"type":"FIX","url":"https://github.com/Sylius/Sylius/pull/19215"},{"type":"PACKAGE","url":"https://github.com/Sylius/Sylius"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/sylius/sylius","events":[{"introduced":"74dd42a09e50620a5f54f9a01676e003160d9f3a"},{"fixed":"b3561f3fbd6a2b10d8d5bd7532b7cadecadb6fa7"},{"introduced":"c8799bea638c5e4ab07a28f66f628d38d8174b41"},{"fixed":"5c7dbe3788f259abbdd7d62a4f281439c6b85bb1"},{"introduced":"57dcd9e53275a880c77d4ec2c4fad9f567f420be"},{"fixed":"1f9bcfa25348479135b5927b4ecfadfd22f97dc8"},{"introduced":"6dd3ca9895be7ab7e6cb71f37af2ef66af17cbe0"},{"fixed":"439a8f66dbf05f369337dc8358e2698d57aba663"},{"introduced":"7aa47be3a617f75337d73d245352ea700bc8a1ef"},{"fixed":"253169df80a8c8babf479c6de5ce3d422e37dc6a"}],"database_specific":{"extracted_events":[{"introduced":"1.12.0"},{"fixed":"1.12.25"},{"introduced":"1.13.0"},{"fixed":"1.13.17"},{"introduced":"1.14.0"},{"fixed":"1.14.20"},{"introduced":"2.0.0"},{"fixed":"2.1.16"},{"introduced":"2.2.0"},{"fixed":"2.2.9"}],"source":"AFFECTED_FIELD"}}],"versions":["v2.2.8","v2.2.7","v2.2.6","v2.1.15","v2.2.5","v2.1.14","v2.2.4","v2.1.13","v1.14.19","v1.13.16","v1.12.24","v2.2.3","v2.1.12","v1.14.18","v1.13.15","v1.12.23","v1.14.17","v1.13.14","v1.12.22","v2.2.2","v2.1.11","v1.14.16","v2.2.1","v2.1.10","v1.14.15","v1.13.13","v1.12.21","v2.2.0","v2.1.9","v1.14.14","v1.13.12","v1.12.20","v2.1.8","v1.14.13","v2.1.7","v1.14.12","v2.1.6","v1.14.11","v2.1.5","v1.14.10","v1.14.9","v2.1.4","v1.14.8","v2.1.3","v1.14.7","v2.1.2","v1.14.6","v2.1.1","v2.1.0","v1.14.5","v1.14.4","v1.14.3","v1.13.11","v2.0.3","v1.14.2","v1.13.10","v2.0.2","v2.0.1","v1.14.1","v1.13.9","v2.0.0","v1.14.0","v1.13.8","v1.13.7","v1.13.6","v1.13.5","v1.13.4","v1.12.19","v1.13.3","v1.12.18","v1.13.2","v1.12.17","v1.13.1","v1.12.16","v1.13.0","v1.12.15","v1.12.14","v1.12.13","v1.12.12","v1.12.11","v1.12.10","v1.12.9","v1.12.8","v1.12.7","v1.12.6","v1.12.5","v1.12.4","v1.12.3","v1.12.2","v1.12.1","v1.12.0"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-100870.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}