{"cve":"CVE-2021-41093","nvd":{"published":"2021-10-04T19:15:08.203","modified":"2026-06-17T04:07:51.693","status":"Modified","description":"Wire is an open source secure messenger. In affected versions if the an attacker gets an old but valid access token they can take over an account by changing the email. This issue has been resolved in version 3.86 which uses a new endpoint which additionally requires an authentication cookie. See wire-ios-sync-engine and wire-ios-transport references. This is the root advisory that pulls the changes together.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","score":9.8},"cwes":["CWE-863","CWE-285"],"references":["https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xj","https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xr","https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7","https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255","https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333m"],"products":["wire:wire"],"source":"nvd","synced_at":"2026-10-19T21:23:41.316049955+00:00"},"epss":{"cve":"CVE-2021-41093","score":0.01491,"percentile":0.74124,"date":"2026-11-01"},"kev":null,"osv":[],"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."]}