{"id":"JLSEC-2026-674","details":"In wolfSSL before 5.5.2, if callback functions are enabled (via the WOLFSSL_CALLBACKS flag), then a malicious TLS 1.3 client or network attacker can trigger a buffer over-read on the heap of 5 bytes. (WOLFSSL_CALLBACKS is only intended for debugging.)","modified":"2026-07-18T00:00:59.729602544Z","published":"2026-07-14T21:41:35.775Z","upstream":["CVE-2022-42905"],"database_specific":{"sources":[{"imported":"2026-07-17T22:23:17.415Z","modified":"2026-06-17T05:05:34.270Z","published":"2022-11-07T00:15:09.643Z","url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2022-42905","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2022-42905","database_specific":{"status":"Modified"},"id":"CVE-2022-42905"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"http://packetstormsecurity.com/files/170610/wolfSSL-WOLFSSL_CALLBACKS-Heap-Buffer-Over-Read.html"},{"type":"WEB","url":"http://seclists.org/fulldisclosure/2023/Jan/11"},{"type":"WEB","url":"https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/releases"},{"type":"WEB","url":"https://github.com/wolfSSL/wolfssl/releases/tag/v5.5.2-stable"},{"type":"WEB","url":"https://www.wolfssl.com/docs/security-vulnerabilities/"}],"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":"5.7.2+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-674.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:N/A:H"}]}