{"items":[{"id":"NVI-00018425","kind":"vulnerability","title":"Deserialization of Untrusted Data in Log4j","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-2qrg-x229-3v8q","CVE-2019-17571"],"plain_summary":"GitHub lists this reviewed advisory for log4j:log4j, org.zenframework.z8.dependencies.commons:log4j-1.2.17. 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-2171348aa65c431306ce9916e1df786b"],"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":"2026-06-09T10:22:29.000Z","value":"9.8 critical","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2171348aa65c431306ce9916e1df786b"}],"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-2171348aa65c431306ce9916e1df786b","url":"https://github.com/advisories/GHSA-2qrg-x229-3v8q","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-2qrg-x229-3v8q","publisher":"GitHub Advisory Database","observed_at":"2026-11-06T20:58:31.464Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2171348aa65c431306ce9916e1df786b"],"technology":"log4j:log4j","known_exclusions":[],"conditions_summary":"Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions 1.2 up to 1.2.17.\n\nUsers are advised to migrate to `org.apache.logging.log4j:log4j-core`.","public_affected_ranges":[">= 1.2, <= 1.2.17"]},{"certainty":"source_listed","source_ids":["sr-2171348aa65c431306ce9916e1df786b"],"technology":"org.zenframework.z8.dependencies.commons:log4j-1.2.17","known_exclusions":[],"conditions_summary":"Included in Log4j 1.2 is a SocketServer class that is vulnerable to deserialization of untrusted data which can be exploited to remotely execute arbitrary code when combined with a deserialization gadget when listening to untrusted network traffic for log data. This affects Log4j versions 1.2 up to 1.2.17.\n\nUsers are advised to migrate to `org.apache.logging.log4j:log4j-core`.","public_affected_ranges":["= 2.0"]}],"null_published_at":"2026-11-07T07:07:39.835Z","source_updated_at":"2026-06-09T10:22:29.000Z","source_disclosed_at":"2020-01-06T18:43:49.000Z","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":"2026-11-06T20:58:31.464Z"}],"next_cursor":null,"snapshot_revision":"42594"}