{"id":"JLSEC-2026-492","details":"A security vulnerability has been detected in libssh2 up to 1.11.1. The impacted element is the function `userauth_password` of the file `src/userauth.c`. Such manipulation of the argument `username_len/password_len` leads to integer overflow. The attack may be launched remotely. The name of the patch is 256d04b60d80bf1190e96b0ad1e91b2174d744b1. A patch should be applied to remediate this issue.","modified":"2026-07-25T18:25:09.142055838Z","published":"2026-05-08T14:39:40.462Z","upstream":["CVE-2026-7598"],"database_specific":{"sources":[{"url":"https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2026-7598","html_url":"https://nvd.nist.gov/vuln/detail/CVE-2026-7598","database_specific":{"status":"Modified"},"id":"CVE-2026-7598","imported":"2026-07-17T22:00:14.744Z","modified":"2026-07-15T01:17:01.190Z","published":"2026-05-01T22:16:16.947Z"}],"license":"CC-BY-4.0"},"references":[{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:16736"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:7021"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-7598"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464597"},{"type":"WEB","url":"https://github.com/libssh2/libssh2/"},{"type":"WEB","url":"https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1"},{"type":"WEB","url":"https://github.com/libssh2/libssh2/pull/1858"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7598.json"},{"type":"WEB","url":"https://vuldb.com/submit/805564"},{"type":"WEB","url":"https://vuldb.com/vuln/360555"},{"type":"WEB","url":"https://vuldb.com/vuln/360555/cti"}],"affected":[{"package":{"name":"LibSSH2_jll","ecosystem":"Julia","purl":"pkg:julia/LibSSH2_jll?uuid=29816b5a-b9ab-546f-933c-edad1886dfa8"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"1.11.101+0"}]}],"database_specific":{"source":"https://github.com/JuliaLang/SecurityAdvisories.jl/tree/generated/osv/2026/JLSEC-2026-492.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V2","score":"AV:N/AC:L/Au:N/C:P/I:P/A:P"},{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/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"}]}