Metrics
Affected Vendors & Products
| Source | ID | Title |
|---|---|---|
Github GHSA |
GHSA-4pj9-g833-qx53 | lettre has TLS hostname verification disabled when using Boring TLS backend |
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
Tue, 21 Jul 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 21 Jul 2026 00:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Lettre
Lettre lettre |
|
| Vendors & Products |
Lettre
Lettre lettre |
Mon, 20 Jul 2026 16:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | lettre is a a mailer library for Rust. Starting in version 0.10.1 and prior to version 0.11.22, an inverted-boolean bug in lettre's `boring-tls` integration silently disables TLS hostname verification for callers using the default (strict) configuration. An on-path attacker presenting any chain-valid certificate for any domain can intercept SMTP submission, including PLAIN/LOGIN credentials and message contents, against any lettre user built with the `boring-tls` feature. Other TLS backends (`native-tls`, `rustls`) are unaffected. Version 0.11.22 patches the issue. | |
| Title | lettre has TLS hostname verification disabled when using Boring TLS backend | |
| Weaknesses | CWE-295 | |
| References |
| |
| Metrics |
cvssV4_0
|
Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-21T15:49:36.495Z
Reserved: 2026-05-13T22:18:22.830Z
Link: CVE-2026-46428
Updated: 2026-07-21T15:49:12.284Z
Status : Deferred
Published: 2026-07-20T16:17:01.347
Modified: 2026-07-23T17:58:34.990
Link: CVE-2026-46428
No data.
OpenCVE Enrichment
Updated: 2026-07-30T19:15:04Z
Github GHSA