low3.7
CVE-2026-93637
An authentication rate-limit bypass in Zimbra Collaboration Suite 10.1.0 through 10.1.21 allows unauthenticated attackers to make repeated password guesses thr…
Impact
An authentication rate-limit bypass in Zimbra Collaboration Suite 10.1.0 through 10.1.21 allows unauthenticated attackers to make repeated password guesses through GraphQL without incrementing Zimbra’s source-IP failure counter. GraphQL aliases allow multiple authentication attempts in one HTTP request.
Affected products
| Product | Affected versions |
|---|---|
| Zimbra Collaboration Suite 10.1.0 | through 10.1.21 |
Versions were read from the advisory text. No structured product data has been published for this record yet.