{"id":"CVE-2026-26379","aliases":["EUVD-2026-34170","GHSA-7pjj-942q-wrwg"],"status":"published","title":"An issue in Koha v.25.11 and before allows a remote attacker to execute arbitrary code via the...","description":"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.","severity":{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp","from":"cve"},"epss":{"day":"2026-11-12","score":0.00243,"percentile":0.15584,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-06-03T00:00:00Z","modified":"2026-10-28T02:31:08Z","products":[{"vendor":"koha","product":"koha"}],"references":[{"url":"https://github.com/Koha-Community/Koha","tags":["Product","package"]},{"url":"https://g03m0n.github.io/","tags":["Third Party Advisory","web"]},{"url":"https://g03m0n.github.io/posts/cve-2026-26379/","tags":["exploit","Exploit","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-26379","tags":["advisory"]},{"url":"https://g03m0n.github.io"},{"url":"https://g03m0n.github.io/posts/cve-2026-26379"},{"url":"https://github.com/advisories/GHSA-7pjj-942q-wrwg"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/26xxx/CVE-2026-26379.json","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2026-26379","description":"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.","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-06-04T16:19:25.366Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T13:38:20.971157Z"}],"euvd":[{"id":"EUVD-2026-34170","description":"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.","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-06-04T16:19:25Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T18:20:52.744481Z"}],"ghsa":[{"id":"GHSA-7pjj-942q-wrwg","title":"An issue in Koha v.25.11 and before allows a remote attacker to execute arbitrary code via the...","description":"An issue in Koha v.25.11 and before allows a remote attacker to execute arbitrary code via the Z39.50 configuration module","status":"published","published":"2026-06-03T21:30:29Z","modified":"2026-06-04T15:30:34Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:08:32.060893Z"}],"nvd":[{"id":"CVE-2026-26379","description":"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.","status":"published","published":"2026-06-03T19:16:25.647Z","modified":"2026-07-22T20:10:00.127Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:22.022466Z"}],"osv":[{"id":"CVE-2026-26379","description":"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.","status":"published","published":"2026-06-03T00:00:00Z","modified":"2026-10-28T02:31:08.501260625Z","cvss":[{"version":"3.1","score":6.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N","level":"medium"}],"updated_at":"2026-11-02T15:44:59.80315Z"}]}}