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Issue 2409 »
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| 2025-10-31 12:17 | Created | Incorrect hostname validation when connecting to S3 endpoint with certificate that does not cover root S3 hostname |
| Component | General | |
| Version | 5.12.1 beta | |
| Severity | Bug | |
| Comment | Caused by Issue 1597. But triggered on 2025-10-31 when AWS started using certificate that do not cover s3.amazonaws.com. |
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| 2025-10-31 12:18 | Comment | Caused by Issue 1597.· But triggered on 2025-10-31 when AWS started using certificate that do not cover ''s3.amazonaws.com''. on some endpoints. |
| 2025-10-31 22:59 | Status | RESOLVED |
| Fixed in | 6.5.5 | |
| Resolution | FIXED | |
| Comment | Fixed. | |
| Comment | Commit efec9426 | |
| 2025-10-31 23:04 | Fixed in | 6.5.5 → 6.3.8 |
| Fixed in (2nd) | 6.5.5 | |
| 2025-11-01 06:45 | Comment | https://github.com/winscp/winscp/commit/efec942674e135050762e1253fcebb60bbec82228e62755db7f588421f253c0765f24b85168b6c75 |