{"id":"CVE-2026-66090","title":"XML External Entity (XXE) Injection in Metadata Field Allows Arbitrary File Read","summary":"In openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitra…","severity":"high","cvss":7.1,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:L/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-611"],"vendor":"Apereo Foundation","product":"openEQUELLA","affected":["openEQUELLA < 2026.1"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-10-29T01:50:31.628692Z"},"published":"2026-10-29","updated":"2026-10-29","sourceUpdated":"2026-10-29T02:02:13.278Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-66090","references":[{"url":"https://github.com/openequella/openEQUELLA/security/advisories/GHSA-668q-3hpr-6c96"},{"url":"https://openequella.github.io/guides/"}],"tags":["cve.org"],"epss":0.00269,"epssPercentile":0.1916,"ingestedAt":"2026-10-31T01:14:13.027Z","slug":"CVE-2026-66090","body":"## Overview\n\nIn openEQUELLA before 2026.1, the XML parser used for item metadata does not disable external entity resolution. A user permitted to create items (CREATE_ITEM) can submit crafted XML to POST /api/item and cause the server to read arbitrary files accessible to the openEQUELLA service, or make requests to attacker-specified locations (SSRF), including cloud instance metadata services.\n\n## Affected\n\n- `openEQUELLA < 2026.1`\n\n## Remediation\n\nUpdate to vendor recommended versions","depth":"twilight","depthScore":39,"depthScoreParts":{"impact":39.1,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}