{"cve":"CVE-2026-6634","nvd":{"published":"2026-04-20T12:16:09.490","modified":"2026-10-26T21:10:00.170","status":"Deferred","description":"A weakness has been identified in usememos memos up to 0.22.1. This affects the function memos_access_token of the file src/App.tsx of the component UpdateInstanceSetting. This manipulation of the argument additionalStyle/additionalScript causes improper authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","score":2.1},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","score":6.3},"cwes":["CWE-266","CWE-285"],"references":["https://github.com/Dave-gilmore-aus/security-advisories/blob/main/usememos-security-advisory","https://vuldb.com/submit/793432","https://vuldb.com/vuln/358268","https://vuldb.com/vuln/358268/cti"],"products":[],"source":"nvd","synced_at":"2026-10-26T21:38:48.864438205+00:00"},"epss":{"cve":"CVE-2026-6634","score":0.00252,"percentile":0.16536,"date":"2026-10-26"},"kev":null,"osv":[{"id":"GHSA-gqp3-hfc3-8q54","url":"https://osv.dev/vulnerability/GHSA-gqp3-hfc3-8q54","summary":"Memos has an Incorrect Privilege Assignment issue","modified":"2026-07-21T15:00:40.968849645Z","packages":[{"ecosystem":"Go","name":"github.com/usememos/memos","purl":"pkg:golang/github.com/usememos/memos","ranges":["<=0.22.1"],"fixed":[]}]},{"id":"GO-2026-5403","url":"https://osv.dev/vulnerability/GO-2026-5403","summary":"Memos has an Incorrect Privilege Assignment issue in github.com/usememos/memos","modified":"2026-06-25T23:01:13.000541235Z","packages":[{"ecosystem":"Go","name":"github.com/usememos/memos","purl":"pkg:golang/github.com/usememos/memos","ranges":["all versions"],"fixed":[]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}