CVE-2021-41093
highpriority · track · 40OT risk · elevatedEPSS 0.015 · 74 %ileEUUSEPSS · scored 2026-10-28
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
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.4–9.8
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (2)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
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references (16)
External citations — patches, advisories, analysis.
- https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjcnnvd
- https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrcnnvd
- https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7cnnvd
- https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255cnnvd
- https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333mcnnvd
- https://nvd.nist.gov/vuln/detail/CVE-2021-41093cnnvd
- https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjenisa_euvd
- https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrenisa_euvd
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