CVE-2026-26379

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{"affected": [{"affectedData": [{"product": "n/a", "vendor": "n/a", "versions": [{"status": "affected", "version": "n/a"}]}], "source": "cve@mitre.org"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:koha:koha:*:*:*:*:*:*:*:*", "matchCriteriaId": "25FAB290-1183-4E6F-8512-9ED7BBEA694C", "versionEndIncluding": "25.11.00", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}, {"lang": "es", "value": "Un problema en Koha v.25.11 y anteriores permite a un atacante remoto ejecutar c\u00f3digo arbitrario a trav\u00e9s del m\u00f3dulo de configuraci\u00f3n Z39.50."}], "id": "CVE-2026-26379", "lastModified": "2026-07-22T20:10:00.127", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "LOW", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 3.9, "impactScore": 2.5, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-26379", "options": [{"exploitation": "poc"}, {"automatable": "yes"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-06-04T12:26:54.226892Z", "version": "2.0.3"}}]}, "published": "2026-06-03T19:16:25.647", "references": [{"source": "cve@mitre.org", "tags": ["Third Party Advisory"], "url": "https://g03m0n.github.io/"}, {"source": "cve@mitre.org", "tags": ["Exploit", "Third Party Advisory"], "url": "https://g03m0n.github.io/posts/cve-2026-26379/"}, {"source": "cve@mitre.org", "tags": ["Product"], "url": "https://github.com/Koha-Community/Koha"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "tags": ["Exploit", "Third Party Advisory"], "url": "https://g03m0n.github.io/posts/cve-2026-26379/"}], "sourceIdentifier": "cve@mitre.org", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}

{}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[0,25.11)"}}], "enrichment": {"confidence": 85.0, "confidence_source": "inferred", "scores": [{"score": 85.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "n/a", "source": "cna", "vendor": "n/a"}, "product": "koha", "vendor": "koha-community"}], "created": "2026-06-03T20:30:36.215041+00:00", "title": "Koha SSRF via Z39.50 Configuration Enables Internal Network Scanning", "updated": "2026-06-04T17:30:16.439088+00:00", "vendors": ["koha-community", "koha-community$PRODUCT$koha"]}