{"id":"CVE-2020-12668","aliases":["EUVD-2022-0760","GHSA-2hjr-fg6c-v2h6"],"status":"published","title":"Unauthorized access to Class instance in Jinjava","description":"Jinjava before 2.5.4 allow access to arbitrary classes by calling Java methods on objects passed into a Jinjava context. This could allow for abuse of the application class loader, including Arbitrary File Disclosure.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-12","score":0.01814,"percentile":0.78972,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-200","CWE-863"],"published":"2021-02-19T22:33:55Z","modified":"2026-10-20T10:51:35Z","fixes":[{"ecosystem":"Maven","package":"com.hubspot.jinjava:jinjava","fixed_in":["2.5.4"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Maven","package":"com.hubspot.jinjava:jinjava","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.4"}]}]},{"source":"osv","ecosystem":"Maven","package":"com.hubspot.jinjava:jinjava","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.5.4"}]}],"versions":["1.0.0","1.0.1","1.0.2","1.0.3","1.0.4","1.0.5","1.0.6","1.0.7","1.0.8","1.0.9","2.0.0","2.0.1","2.0.10","2.0.11-java7","2.0.2","2.0.3","2.0.4","2.0.5","2.0.6","2.0.7","2.0.8","2.0.9","2.1.0","2.1.1","2.1.10","2.1.11","2.1.12","2.1.13","2.1.14","2.1.15","2.1.16","2.1.17","2.1.18","2.1.19","2.1.2","2.1.3","2.1.4","2.1.5","2.1.6","2.1.7","2.1.8","2.1.9","2.2.0","2.2.1","2.2.10","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.1","2.3.3","2.3.4","2.3.5","2.3.6","2.4.0","2.4.1","2.4.10","2.4.11","2.4.12","2.4.13","2.4.14","2.4.15","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.4.9","2.5.0","2.5.1","2.5.2","2.5.3"]}],"products":[{"vendor":"hubspot","product":"jinjava"}],"references":[{"url":"https://github.com/HubSpot/jinjava/compare/jinjava-2.5.3...jinjava-2.5.4","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://github.com/HubSpot/jinjava/pull/426/commits/5dfa5b87318744a4d020b66d5f7747acc36b213b","tags":["x_refsource_MISC","x_transferred","Patch","Permissions Required","Third Party Advisory","fix","web"]},{"url":"https://github.com/HubSpot/jinjava/pull/435/commits/1b9aaa4b420c58b4a301cf4b7d26207f1c8d1165","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://github.com/HubSpot/jinjava/releases/tag/jinjava-2.5.4","tags":["x_refsource_MISC","x_transferred","Release Notes","Third Party Advisory","advisory","web"]},{"url":"https://securitylab.github.com/advisories/GHSL-2020-072-hubspot_jinjava","tags":["x_refsource_MISC","x_transferred","Exploit","Third Party Advisory","evidence","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-12668","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-2hjr-fg6c-v2h6"}],"sources":{"cve":[{"id":"CVE-2020-12668","description":"Jinjava before 2.5.4 allow access to arbitrary classes by calling Java methods on objects passed into a Jinjava context. This could allow for abuse of the application class loader, including Arbitrary File Disclosure.","status":"published","published":"2021-02-19T22:33:55Z","modified":"2024-08-04T12:04:22.52Z","updated_at":"2026-11-02T14:35:53.236501Z"}],"euvd":[{"id":"EUVD-2022-0760","description":"Jinjava before 2.5.4 allow access to arbitrary classes by calling Java methods on objects passed into a Jinjava context. This could allow for abuse of the application class loader, including Arbitrary File Disclosure.","status":"published","published":"2021-02-19T22:33:55Z","modified":"2024-08-04T12:04:22Z","updated_at":"2026-11-03T03:07:38.81332Z"}],"ghsa":[{"id":"GHSA-2hjr-fg6c-v2h6","title":"Unauthorized access to Class instance in Jinjava","description":"Jinjava before 2.5.4 allow access to arbitrary classes by calling Java methods on objects passed into a Jinjava context. 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