{"id":"CVE-2026-34871","details":"An issue was discovered in Mbed TLS before 3.6.6 and 4.x before 4.1.0 and TF-PSA-Crypto before 1.1.0. There is a Predictable Seed in a Pseudo-Random Number Generator (PRNG).","modified":"2026-07-15T01:49:12.749783727Z","published":"2026-04-01T00:00:00Z","related":["openSUSE-SU-2026:10498-1"],"database_specific":{"unresolved_ranges":[{"source":"DESCRIPTION","extracted_events":[{"fixed":"3.6.6"},{"introduced":"4.x"},{"fixed":"4.1.0"},{"fixed":"1.1.0"}]}],"cna_assigner":"mitre","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34871.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/34xxx/CVE-2026-34871.json"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/"},{"type":"ADVISORY","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34871"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/mbed-tls/tf-psa-crypto","events":[{"introduced":"0"},{"fixed":"29160dd877d29658279fd683b2ae57b320ddcf09"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:trustedfirmware:tf-psa-crypto:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"1.1.0"}]}}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-34871.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}]}