{"id":"JLSEC-2026-689","summary":"In the OpenSSL compatibility layer implementation, the function RAND_poll() was not behaving as...","details":"In the OpenSSL compatibility layer implementation, the function RAND_poll() was not behaving as expected and leading to the potential for predictable values returned from RAND_bytes() after fork() is called. This can lead to weak or predictable random numbers generated in applications that are both using RAND_bytes() and doing fork() operations. This only affects applications explicitly calling RAND_bytes() after fork() and does not affect any internal TLS operations. Although RAND_bytes() documentation in OpenSSL calls out not being safe for use with fork() without first calling RAND_poll(), an additional code change was also made in wolfSSL to make RAND_bytes() behave similar to OpenSSL after a fork() call without calling RAND_poll(). Now the Hash-DRBG used gets reseeded after detecting running in a new process. If making use of RAND_bytes() and calling fork() we recommend updating to the latest version of wolfSSL. Thanks to Per Allansson from Appgate for the report.","modified":"2026-07-18T00:02:19.931850868Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2025-7394","GHSA-jgh6-fqf6-cpj8","EUVD-2025-21938"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-7394","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2025-7394","database_specific":{"status":"Analyzed"},"id":"CVE-2025-7394","imported":"2026-07-17T22:25:33.208Z","modified":"2026-06-17T10:04:50.223Z","published":"2025-07-18T23:15:23.470Z"},{"imported":"2026-07-17T22:25:33.391Z","modified":"2025-12-03T15:30:27Z","published":"2025-07-19T00:32:31Z","url":"https://api.github.com/advisories/GHSA-jgh6-fqf6-cpj8","html_url":"https://github.com/advisories/GHSA-jgh6-fqf6-cpj8","id":"GHSA-jgh6-fqf6-cpj8"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-21938","id":"EUVD-2025-21938","imported":"2026-07-17T22:25:42.409Z","modified":"2025-07-21T15:00:21Z","published":"2025-07-18T22:34:23Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2025-21938"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-jgh6-fqf6-cpj8"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/blob/master/ChangeLog.md#wolfssl-release-582-july-17-2025"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-7394"}],"affected":[{"package":{"name":"wolfSSL_jll","ecosystem":"Julia","purl":"pkg:julia/wolfSSL_jll?uuid=98c43586-9870-5ae5-ab22-acc77b9bbdb5"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"5.8.4+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-689.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:P/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}