{"id":"JLSEC-2026-725","summary":"A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare...","details":"A heap use-after-free exists in wolfSSL's TLS 1.3 post-quantum cryptography (PQC) hybrid KeyShare processing. In the error handling path of `TLSX_KeyShare_ProcessPqcHybridClient()` in `src/tls.c`, the inner function `TLSX_KeyShare_ProcessPqcClient_ex()` frees a KyberKey object upon encountering an error. The caller then invokes `TLSX_KeyShare_FreeAll()`, which attempts to call ForceZero() on the already-freed KyberKey, resulting in writes of zero bytes over freed heap memory.","modified":"2026-07-25T18:24:49.604582488Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-5460","GHSA-w87p-fqgx-cqq8","EUVD-2026-21240"],"database_specific":{"sources":[{"modified":"2026-06-17T10:59:04.097Z","published":"2026-04-10T00:16:36.033Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-5460","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5460","database_specific":{"status":"Analyzed"},"id":"CVE-2026-5460","imported":"2026-07-17T22:31:20.687Z"},{"published":"2026-04-10T00:30:31Z","url":"https://api.github.com/advisories/GHSA-w87p-fqgx-cqq8","html_url":"https://github.com/advisories/GHSA-w87p-fqgx-cqq8","id":"GHSA-w87p-fqgx-cqq8","imported":"2026-07-17T22:31:20.861Z","modified":"2026-04-29T15:30:37Z"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-21240","id":"EUVD-2026-21240","imported":"2026-07-17T22:31:30.739Z","modified":"2026-04-10T13:51:18Z","published":"2026-04-09T23:29:27Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-21240"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-w87p-fqgx-cqq8"},{"type":"WEB","url":"https://github.com/wolfssl/wolfssl/pull/10092"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5460"}],"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":"5.9.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-725.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:N/I:L/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/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"}]}