{"id":"CVE-2026-26379","details":"Koha versions up to 25.11 contain a Server-Side Request Forgery (SSRF) vulnerability via the Z39.50/SRU server configuration. This allows authenticated attackers to perform internal network scanning and identify running services by analyzing server response times.","modified":"2026-07-15T01:48:58.975125126Z","published":"2026-06-03T00:00:00Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26379.json","cna_assigner":"mitre"},"references":[{"type":"WEB","url":"https://g03m0n.github.io/"},{"type":"WEB","url":"https://g03m0n.github.io/posts/cve-2026-26379/"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26379.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26379"},{"type":"PACKAGE","url":"https://github.com/Koha-Community/Koha"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/koha-community/koha","events":[{"introduced":"0"},{"last_affected":"3f2987eb19f7ac1987591d8e9b01961c39405b39"}],"database_specific":{"source":"CPE_RANGE","cpe":"cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"last_affected":"25.11.00"}]}}],"versions":["v25.11.00","v25.05.00-1","v25.05.00-2","v24.11.00","v24.05.00","v23.11.00","v23.05.00","v22.11.00","v22.05.00","v21.11.00","v21.05.00","v20.11.00","v20.05.00","v19.11.00","v19.05.00","v18.11.00","v18.05.00","v18.05.00-rc1","v17.11.00","v17.05.00","v16.11.00","v16.05.00","v16.05.00-beta","v3.22.00","v3.22.00-beta","v3.20.00","v3.20.00-beta","v3.18.00","v3.18.00-beta","v3.16.00","v3.16.00-rc","v3.16.00-beta","v3.14.00-beta","v3.14.00-alpha2","v3.14.00-alpha1","v3.12.00-beta1","v3.12.00-alpha2","v3.12.00-alpha","v3.08.00","v3.04.00","v3.02.00-beta","v3.02.00-alpha2","v3.02.00-alpha","v3.00.00","v3.00.00-stableRC1","v3.00.00-beta2","v3.00.00-beta","v3.00.00-alpha","R_2-4","R_2-1","R_2-0-0RC1","R_2-0-0pre5","R_2-0-0pre4","R_2-0-0pre3","R_2-0-0pre2","R_2-0-0pre1","R_1-9-3","R_1-9-2","R_1-9-1","R_1-9-0","R_1-3-3","R_1-3-2","R_1-3-1","R_1-3-0","R_1-2-2RC4"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-26379.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:L/I:L/A:N"}]}