CVE-2026-34873
CRITICAL9.1EPSS 0.04%Published: 4/1/2026Modified: 5/20/2026
Also known as:DEBIAN-CVE-2026-34873
Description
An issue was discovered in Mbed TLS 3.5.0 through 4.0.0. Client impersonation can occur while resuming a TLS 1.3 session.
Affected packages (1)
- Debian/mbedtlsfrom 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |