{"id":"BIT-discourse-2026-45788","summary":"Discourse: Secure uploads exposed by hotlinked image copying","details":"Discourse is an open-source discussion platform. Prior to 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5, secure uploads could be exposed by pull_hotlinked_images when an attacker knew the secured upload URL and the secure_uploads site setting was enabled. This issue is fixed in versions 2026.6.0, 2026.5.1, 2026.4.2, and 2026.1.5.","aliases":["CVE-2026-45788","GHSA-3876-w96v-8v38"],"modified":"2026-09-10T16:00:58.757047827Z","published":"2026-07-15T15:56:16.647Z","database_specific":{"severity":"High","cpes":["cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*"]},"references":[{"type":"FIX","url":"https://github.com/discourse/discourse/commit/5807c426880eadf248006e851604fc9284327ce5"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/8b4a959b251a856a9c911fb9f2ac34fbc31a7471"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/eff53af26367ae0dcb3a426954d233e8c7449f95"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/fa74e0dec7341a858ab83a1977fa52629bced1aa"},{"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-3876-w96v-8v38"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-45788"}],"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"}]}],"database_specific":{"source":"https://github.com/bitnami/vulndb/tree/main/data/discourse/BIT-discourse-2026-45788.json"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"}]}],"schema_version":"1.9.0"}