CVE-2026-34873
- Source
- https://cve.org/CVERecord?id=CVE-2026-34873
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34873.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-34873
- Downstream
- Related
- Published
- 2026-04-01T00:00:00Z
- Modified
- 2026-10-20T11:46:34Z
- Severity
-
- 9.1 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
- Summary
- [none]
- Details
-
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.
- Database specific
{ "cna_assigner": "mitre", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34873.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34873.json
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/
- https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-client-impersonation-while-resuming-tls13-session/
- https://nvd.nist.gov/vuln/detail/CVE-2026-34873
Affected packages
Git / github.com/mbed-tls/mbedtls
Affected ranges
- Type
- GIT
- Repo
- https://github.com/mbed-tls/mbedtls
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "cpe": "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*", "range": [ { "introduced": "3.5.0" }, { "fixed": "3.6.6" } ], "source": "CPE_RANGE" }, { "cpe": "cpe:2.3:a:trustedfirmware:mbed_tls:*:*:*:*:*:*:*:*", "range": [ { "introduced": "4.0.0" }, { "fixed": "4.1.0" } ], "source": "CPE_RANGE" } ] }