{"id":"JLSEC-2026-726","summary":"wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the...","details":"wolfSSL's ECCSI signature verifier `wc_VerifyEccsiHash` decodes the `r` and `s` scalars from the signature blob via `mp_read_unsigned_bin` with no check that they lie in `[1, q-1]`. A crafted forged signature could verify against any message for any identity, using only publicly-known constants.","modified":"2026-07-18T00:02:21.312076026Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2026-5466","GHSA-47qf-hp3h-rwmm","EUVD-2026-21291"],"database_specific":{"sources":[{"modified":"2026-06-17T10:59:04.683Z","published":"2026-04-10T04:17:16.420Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-5466","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5466","database_specific":{"status":"Analyzed"},"id":"CVE-2026-5466","imported":"2026-07-17T22:31:30.836Z"},{"published":"2026-04-10T06:31:37Z","url":"https://api.github.com/advisories/GHSA-47qf-hp3h-rwmm","html_url":"https://github.com/advisories/GHSA-47qf-hp3h-rwmm","id":"GHSA-47qf-hp3h-rwmm","imported":"2026-07-17T22:31:31Z","modified":"2026-04-29T15:31:38Z"},{"html_url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-21291","id":"EUVD-2026-21291","imported":"2026-07-17T22:31:40.918Z","modified":"2026-04-22T03:55:48Z","published":"2026-04-10T03:00:42Z","url":"https://euvdservices.enisa.europa.eu/api/enisaid?id=EUVD-2026-21291"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://github.com/advisories/GHSA-47qf-hp3h-rwmm"},{"type":"WEB","url":"https://github.com/wolfssl/wolfssl/pull/10102"},{"type":"WEB","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5466"}],"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-2026-726.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/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"}]}