CVE-2021-41093

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.

• CWE-285
• CWE-863

• https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjBroken Link
• https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrBroken Link
• https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7Patch, Third Party Advisory
• https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255Third Party Advisory
• https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333mThird Party Advisory
• https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xjBroken Link
• https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xrBroken Link
• https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7Patch, Third Party Advisory
• https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255Third Party Advisory
• https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333mThird Party Advisory

Published

Oct 4, 2021

Last Modified

Jun 17, 2026

Status

Modified

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