{"items":[{"id":"NVI-00018340","kind":"vulnerability","title":"Ollama Server Vulnerable to Denial of Service (DoS) Attack","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-wrh5-cmwx-q2qr","CVE-2025-1975"],"plain_summary":"GitHub lists this reviewed advisory for github.com/ollama/ollama. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-137b648822c6a5805f1c120d681c52b8"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"CVSS","as_of":"2026-06-06T01:02:23.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-137b648822c6a5805f1c120d681c52b8"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-137b648822c6a5805f1c120d681c52b8","url":"https://github.com/advisories/GHSA-wrh5-cmwx-q2qr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-wrh5-cmwx-q2qr","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:52:42.537Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-137b648822c6a5805f1c120d681c52b8"],"technology":"github.com/ollama/ollama","known_exclusions":[],"conditions_summary":"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.","public_affected_ranges":["<= 0.5.11"]}],"null_published_at":"2026-11-07T07:07:39.818Z","source_updated_at":"2026-06-06T01:02:23.000Z","source_disclosed_at":"2025-05-16T09:30:36.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-07T00:52:42.537Z"}],"next_cursor":null,"snapshot_revision":"42594"}