6.5
Medium
CVE-2022-31742 An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting…
Description
An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. This vulnerability affects Thunderbird < 91.10, Firefox < 101, and Firefox ESR < 91.10.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Thunderbird 91.10 | earliest → < 91.10 | 91.10 |
| Firefox 101 | earliest → < 101 | 101 |
| Firefox ESR 91.10 | earliest → < 91.10 | 91.10 |
Other CVEs of Thunderbird
The 1713 CVEs of Thunderbird →
CVE-2026-118180
Matrix homeserver could redirect the chat session to a local file or network share
7.5
High
CVE-2026-118179
Request forgery via news: links
8.8
High
CVE-2026-118178
RSS feed could redirect its subscription to a local file or network share
5.7
Medium
CVE-2026-118177
Calendar discovery accepted local file and remote network share locations
9.1
Critical