CVE-2021-41093
HIGHWire < 3.86 - Account Takeover via Stale Access Token
Title source: llmDescription
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.
References (5)
Core 5
Core References
Third Party Advisory x_refsource_confirm
https://github.com/wireapp/wire-ios/security/advisories/GHSA-6f4c-phfj-m255
Broken Link x_refsource_misc
https://github.com/wireapp/wire-ios-sync-engine/security/advisories/GHSA-w727-5f74-49xj
Broken Link x_refsource_misc
https://github.com/wireapp/wire-ios-transport/security/advisories/GHSA-p354-6r3m-g4xr
Third Party Advisory x_refsource_misc
https://github.com/wireapp/wire-server/security/advisories/GHSA-9rm2-w6pq-333m
Patch, Third Party Advisory x_refsource_misc
https://github.com/wireapp/wire-ios/commit/b0e7bb3b13dd8212032cb46e32edf701694687c7
Scores
CVSS v3
7.4
EPSS
0.0144
EPSS Percentile
69.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Details
CWE
CWE-285
CWE-863
Status
published
Products (1)
wire/wire
< 3.86
Published
Oct 04, 2021
Tracked Since
Feb 18, 2026