{"id":"CVE-2026-73064","details":"In Mbed TLS 3.2.0 though 3.6.6 and 4.0.0 through 4.1.0, an attacker who can cause an entropy source to fail can remove or inject bytes into the start of the TLS stream. This only affects TLS 1.3 servers.","modified":"2026-09-26T03:47:17.105748649Z","published":"2026-09-24T14:58:38.367Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73064.json","cna_assigner":"mitre","cwe_ids":["CWE-394"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/73xxx/CVE-2026-73064.json"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-07-random-generator-fault-tls-integrity/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73064"},{"type":"PACKAGE","url":"https://github.com/Mbed-TLS/mbedtls"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mbed-tls/mbedtls","events":[{"introduced":"3aef7670b78ddebf80f4ad38b9a0059d40021832"},{"fixed":"068ff080b369adfac81509f9b57b2afabaf82dc5"},{"introduced":"ec4044008d2d069da38288bc76b0fee34ec78646"},{"fixed":"0a8fda272a5a0abef3b47c91bed37185d5a726b1"}],"database_specific":{"extracted_events":[{"introduced":"3.2.0"},{"fixed":"3.6.7"},{"introduced":"4.0.0"},{"fixed":"4.1.1"}],"source":"AFFECTED_FIELD"}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-73064.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N"}]}