{"id":"CVE-2026-7598","title":"A security vulnerability has been detected in libssh2 up to 1.11.1","summary":"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.…","severity":"high","cvss":7.3,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","cwe":["CWE-189","CWE-190","CWE-190"],"vendor":"libssh2","product":"libssh2","affected":["libssh2 <= 1.11.1"],"published":"2026-05-01","updated":"2026-09-01","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-7598","references":[{"url":"https://github.com/libssh2/libssh2/","label":"cna@vuldb.com"},{"url":"https://github.com/libssh2/libssh2/commit/256d04b60d80bf1190e96b0ad1e91b2174d744b1","label":"cna@vuldb.com"},{"url":"https://github.com/libssh2/libssh2/pull/1858","label":"cna@vuldb.com"},{"url":"https://vuldb.com/submit/805564","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/360555","label":"cna@vuldb.com"},{"url":"https://vuldb.com/vuln/360555/cti","label":"cna@vuldb.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:16736","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:61752","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/errata/RHSA-2026:7021","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://access.redhat.com/security/cve/CVE-2026-7598","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2464597","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-7598.json","label":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c"},{"url":"https://vuldb.com/submit/805564","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00466,"epssPercentile":0.39426,"ingestedAt":"2026-09-02T12:43:46.469Z","slug":"CVE-2026-7598","body":"## Overview\n\nA 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.\n\n## Affected\n\n- `libssh2 <= 1.11.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":40.2,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}