{"id":"JLSEC-2026-465","summary":"Mbed TLS may use a low entropy PRNG seed","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":"2026-05-07T16:47:39.181753655Z","published":"2026-05-07T16:17:33.752Z","upstream":["CVE-2026-34871","EUVD-2026-18001","GHSA-rjq9-c3rf-c638"],"database_specific":{"sources":[{"modified":"2026-04-06T14:30:17.607Z","database_specific":{"status":"Analyzed"},"imported":"2026-05-07T15:18:08.142Z","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34871","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-34871","id":"CVE-2026-34871","published":"2026-04-01T19:16:33.267Z"},{"modified":"2026-04-01T21:30:38Z","id":"GHSA-rjq9-c3rf-c638","imported":"2026-05-07T15:18:08.965Z","html_url":"https://github.com/advisories/GHSA-rjq9-c3rf-c638","url":"https://api.github.com/advisories/GHSA-rjq9-c3rf-c638","published":"2026-04-01T21:30:30Z"},{"modified":"2026-04-01T20:04:34Z","id":"EUVD-2026-18001","imported":"2026-05-07T15:18:05.297Z","html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-18001","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-18001","published":"2026-04-01T00:00:00Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-rjq9-c3rf-c638"},{"type":"WEB","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories"},{"type":"WEB","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/"},{"type":"WEB","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random"},{"type":"WEB","url":"https://mbed-tls.readthedocs.io/en/latest/security-advisories/mbedtls-security-advisory-2026-03-dev-random/"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-34871"}],"affected":[{"package":{"name":"MbedTLS_jll","ecosystem":"Julia","purl":"pkg:julia/MbedTLS_jll?uuid=c8ffd9c3-330d-5841-b78e-0817d7145fa1"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-465.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"}]}