{"cve":"CVE-2026-79669","nvd":{"published":"2026-08-25T12:16:35.107","modified":"2026-09-23T18:14:58.577","status":"Awaiting Analysis","description":"Ech0 before 4.4.3 lacks authorization checks on system log endpoints allowing any authenticated non-admin user to read and stream all server logs. Attackers can access historical logs and real-time log streams via GET /api/system/logs, GET /api/system/logs/stream, and WS /ws/system/logs to gather reconnaissance data including internal file paths, error stack traces, and application state.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","score":5.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N","score":4.3},"cwes":["CWE-862"],"references":["https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2","https://www.vulncheck.com/advisories/ech0-before-missing-authorization-on-system-logs","https://github.com/lin-snow/Ech0/security/advisories/GHSA-w8jj-cwmc-wgq2"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:50:17.453294893+00:00"},"epss":{"cve":"CVE-2026-79669","score":0.00281,"percentile":0.20626,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-w8jj-cwmc-wgq2","url":"https://osv.dev/vulnerability/GHSA-w8jj-cwmc-wgq2","summary":"Ech0's Missing Authorization on System Logs Allows Non-Admin Information Disclosure","modified":"2026-08-27T03:55:29.167219077Z","packages":[{"ecosystem":"Go","name":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","ranges":["<4.4.3"],"fixed":["4.4.3"]}]},{"id":"GO-2026-5701","url":"https://osv.dev/vulnerability/GO-2026-5701","summary":"Ech0's Missing Authorization on System Logs Allows Non-Admin Information Disclosure in github.com/lin-snow/ech0","modified":"2026-08-27T03:55:29.167219077Z","packages":[{"ecosystem":"Go","name":"github.com/lin-snow/ech0","purl":"pkg:golang/github.com/lin-snow/ech0","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."]}