CVE-2026-34873: 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.
Overview
- Severity
- High (CVSS 7.4)
- CVSS Vector
- CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-Apr
- Released
- 2026-05-07
- Last Updated
- 2026-06-02
- EPSS Score
- 0.24% (percentile: 15.0%)
Affected Products (2)
Open Source Software
- azl3 nodejs24 24.14.1-2 on Azure Linux 3.0
Other
Revision History
- 2026-05-07: Information published.
- 2026-05-19: Information published.
- 2026-05-31: Information published.
- 2026-06-01: Information published.
- 2026-06-02: Information published.