{"id":"CVE-2025-1975","aliases":["EUVD-2025-15424","GHSA-wrh5-cmwx-q2qr","GO-2025-3695","PYSEC-2025-145","openSUSE-SU-2025:15159-1"],"status":"published","title":"Improper Validation of Array Index in ollama/ollama","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00517,"percentile":0.44237,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-129"],"published":"2025-05-16T08:25:57Z","modified":"2026-10-28T02:30:51Z","affected":[{"source":"ghsa","ecosystem":"Go","package":"github.com/ollama/ollama","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.5.11"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/ollama/ollama","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.5.11"}]}]},{"source":"osv","ecosystem":"Go","package":"github.com/ollama/ollama","ranges":[{"type":"SEMVER","events":[{"introduced":"0"}]}]},{"source":"osv","ecosystem":"openSUSE:Tumbleweed","package":"govulncheck-vulndb","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.0.20250523T151856-1.1"}]}],"bundled":14}],"products":[{"vendor":"ollama","product":"ollama"},{"vendor":"ollama","product":"ollama/ollama"}],"references":[{"url":"https://huntr.com/bounties/921ba5d4-f1d0-4c66-9764-4f72dffe7acd","tags":["Exploit","Third Party Advisory","web","evidence"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-1975","tags":["advisory"]},{"url":"https://pkg.go.dev/vuln/GO-2025-3695","tags":["web"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/ollama/PYSEC-2025-145.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-wrh5-cmwx-q2qr","tags":["advisory"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/1xxx/CVE-2025-1975.json","tags":["advisory"]},{"url":"https://github.com/ollama/ollama","tags":["package"]},{"url":"https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/NBVOKYMJCE2HZLSF5W3H3Q7KEHMMOQR3/","tags":["advisory"]},{"url":"https://www.suse.com/security/cve/CVE-2024-40120","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-1975","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2527","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-2570","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-31947","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-3446","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47282","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47283","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47284","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47290","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-47291","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-48056","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-48069","tags":["web"]},{"url":"https://www.suse.com/security/cve/CVE-2025-5031","tags":["web"]}],"sources":{"cve":[{"id":"CVE-2025-1975","title":"Improper Validation of Array Index in ollama/ollama","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T08:25:57.177Z","modified":"2025-05-16T15:50:11.815Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T14:32:49.824855Z"}],"euvd":[{"id":"EUVD-2025-15424","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T08:25:57Z","modified":"2025-05-16T15:50:11Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:45.127966Z"}],"ghsa":[{"id":"GHSA-wrh5-cmwx-q2qr","title":"Ollama Server Vulnerable to Denial of Service (DoS) Attack","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T09:30:36Z","modified":"2026-06-06T01:02:23Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T14:40:18.682012Z"}],"nvd":[{"id":"CVE-2025-1975","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T09:15:17.98Z","modified":"2026-06-17T08:40:27.95Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T14:11:08.321805Z"}],"osv":[{"id":"CVE-2025-1975","title":"Improper Validation of Array Index in ollama/ollama","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T08:25:57.177Z","modified":"2026-10-28T02:30:51.010263514Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T15:44:46.665428Z"},{"id":"GHSA-wrh5-cmwx-q2qr","title":"Ollama Server Vulnerable to Denial of Service (DoS) Attack","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"published","published":"2025-05-16T09:30:36Z","modified":"2026-09-10T03:50:24.68844775Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-129"],"updated_at":"2026-11-02T15:46:59.131095Z"},{"id":"PYSEC-2025-145","description":"A vulnerability in the Ollama server version 0.5.11 allows a malicious user to cause a Denial of Service (DoS) attack by customizing the manifest content and spoofing a service. This is due to improper validation of array index access when downloading a model via the /api/pull endpoint, which can lead to a server crash.","status":"withdrawn","published":"2025-05-16T09:15:17.98Z","modified":"2026-06-10T12:00:05.499859385Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T15:52:54.242332Z"},{"id":"GO-2025-3695","title":"Ollama Server Vulnerable to Denial of Service (DoS) Attack in github.com/ollama/ollama","description":"Ollama Server Vulnerable to Denial of Service (DoS) Attack in github.com/ollama/ollama","status":"published","published":"2025-05-22T16:50:31Z","modified":"2026-06-10T12:11:03.946507195Z","updated_at":"2026-11-02T15:47:01.728182Z"},{"id":"openSUSE-SU-2025:15159-1","title":"govulncheck-vulndb-0.0.20250523T151856-1.1 on GA media","description":"These are all security issues fixed in the govulncheck-vulndb-0.0.20250523T151856-1.1 package on the GA media of openSUSE Tumbleweed.","status":"published","published":"2025-05-26T00:00:00Z","modified":"2026-03-23T04:53:25.486565Z","updated_at":"2026-11-02T16:58:37.399567Z"}]}}