{"id":"CVE-2026-100677","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-100677","generatedAt":"2026-10-28T02:57:56.175Z","title":"stoatchat before 0.15.5 contains an account enumeration vulnerability in the login endpoint that exposes source file locations in error responses.","description":"stoatchat before 0.15.5 contains an account enumeration vulnerability in the login endpoint that exposes source file locations in error responses. Unauthenticated attackers can distinguish between registered and unregistered email addresses by comparing error location fields returned from POST /api/auth/session/login requests.","published":"2026-09-26T14:16:52.000Z","lastModified":"2026-09-30T18:18:01.000Z","status":"Deferred","sourceIdentifier":"disclosure@vulncheck.com","cvss":{"version":"4.0","score":6.9,"severity":"MEDIUM","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-209"],"affected":[],"epss":{"score":0.00337,"percentile":0.26875,"date":"2026-10-26","history":[{"date":"2026-09-27","score":0.00261,"percentile":0.16024}]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.34%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-09-26T14:16:52.000Z","detail":{"score":"6.9","severity":"MEDIUM","publishedAt":"2026-09-26T14:16:51.717Z"},"summary":"New CVE, medium severity (CVSS 6.9)."}],"references":[{"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h44h-xx2j-hp56","source":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/stoatchat-before-0.15.5-account-enumeration-via-error-location","source":"disclosure@vulncheck.com"},{"url":"https://github.com/stoatchat/stoatchat/security/advisories/GHSA-h44h-xx2j-hp56","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-100677","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}