{"id":"CVE-2023-47120","summary":"Discourse DoS through Onebox favicon URL","details":"Discourse is an open source platform for community discussion. In versions 3.1.0 through 3.1.2 of the `stable` branch and versions 3.1.0,beta6 through 3.2.0.beta2 of the `beta` and `tests-passed` branches, Redis memory can be depleted by crafting a site with an abnormally long favicon URL and drafting multiple posts which Onebox it. The issue is patched in version 3.1.3 of the `stable` branch and version 3.2.0.beta3 of the `beta` and `tests-passed` branches. There are no known workarounds.","aliases":["BIT-discourse-2023-47120","GHSA-77cw-xhj8-hfp3"],"modified":"2026-08-12T03:51:42.514927886Z","published":"2023-11-10T15:09:54.389Z","database_specific":{"cwe_ids":["CWE-770"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47120.json","cna_assigner":"GitHub_M"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/47xxx/CVE-2023-47120.json"},{"type":"ADVISORY","url":"https://github.com/discourse/discourse/security/advisories/GHSA-77cw-xhj8-hfp3"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-47120"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/95a82d608d6377faf68a0e2c5d9640b043557852"},{"type":"FIX","url":"https://github.com/discourse/discourse/commit/e910dd09140cb4abc3a563b95af4a137ca7fa0ce"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/discourse/discourse","events":[{"introduced":"0876f262e932da2478ed1d2ec275bd2153001213"},{"fixed":"4f64a829e552993a9e6fcc7f77b826f56683551d"},{"introduced":"78b009aafed11cab4b37a9ab4bb9f01092fcd711"},{"fixed":"95a82d608d6377faf68a0e2c5d9640b043557852"},{"fixed":"e910dd09140cb4abc3a563b95af4a137ca7fa0ce"}],"database_specific":{"cpe":["cpe:2.3:a:discourse:discourse:*:*:*:*:stable:*:*:*","cpe:2.3:a:discourse:discourse:3.1.0:beta6:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.1.0:beta7:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.1.0:beta8:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.2.0:beta1:*:*:beta:*:*:*","cpe:2.3:a:discourse:discourse:3.2.0:beta2:*:*:beta:*:*:*"],"extracted_events":[{"introduced":"3.1.0"},{"fixed":"3.1.3"},{"introduced":"3.1.0-beta6"},{"last_affected":"3.1.0-beta6"},{"introduced":"3.1.0-beta7"},{"last_affected":"3.1.0-beta7"},{"introduced":"3.1.0-beta8"},{"last_affected":"3.1.0-beta8"},{"introduced":"3.2.0-beta1"},{"last_affected":"3.2.0-beta1"},{"introduced":"3.2.0-beta2"},{"last_affected":"3.2.0-beta2"}],"source":["CPE_RANGE","CPE_STRING","REFERENCES"]}}],"versions":["3.1.0-beta6","3.1.0-beta7","3.1.0-beta8","3.2.0-beta1","3.2.0-beta2","v3.1.2","v3.2.0.beta2","v3.1.1","v3.2.0.beta1","v3.1.0","v3.1.0.beta8","v3.1.0.beta7","v3.1.0.beta6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2023-47120.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}