{"id":"BIT-discourse-2026-55420","summary":"Discourse: Remote code execution via pdf uploads","details":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, under certain non-default configurations, processing of PDF uploads could be exploited to obtain RCE on the server. This issue is patched in 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","aliases":["CVE-2026-55420","GHSA-7wq5-jgww-5rw3"],"modified":"2026-09-08T08:46:26.611444149Z","published":"2026-07-14T08:46:44.451Z","database_specific":{"cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*","cpe:2.3:a:discourse:discourse:*:*:*:*:latest:*:*:*"],"severity":"High"},"references":[{"type":"FIX","url":"https://github.com/discourse/discourse/commit/ca5a7e06167561928556afa2f237d67e459c6914"},{"type":"ARTICLE","url":"https://github.com/discourse/discourse/releases/tag/v2026.1.5"},{"type":"ARTICLE","url":"https://github.com/discourse/discourse/releases/tag/v2026.4.2"},{"type":"ARTICLE","url":"https://github.com/discourse/discourse/releases/tag/v2026.5.1"},{"type":"ARTICLE","url":"https://github.com/discourse/discourse/releases/tag/v2026.6.0"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-7wq5-jgww-5rw3"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-55420"}],"affected":[{"package":{"name":"discourse","ecosystem":"Bitnami","purl":"pkg:bitnami/discourse"},"ranges":[{"type":"SEMVER","events":[{"introduced":"2026.1.0"},{"fixed":"2026.1.5"},{"introduced":"2026.4.0"},{"fixed":"2026.4.2"},{"introduced":"2026.5.0"},{"fixed":"2026.5.1"},{"introduced":"2026.6.0"},{"fixed":"2026.7.0"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-55420.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H"}]}],"schema_version":"1.9.0"}