{"items":[{"id":"NVI-00015369","kind":"vulnerability","title":"axonflow-sdk-java: Webhook signing-key (HMAC-SHA256) not exposed by SDK type, preventing signature verification","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-248h-974q-xrc2"],"plain_summary":"GitHub lists this reviewed advisory for com.getaxonflow:axonflow-sdk. 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-615458bf555bdafdb9b12bfb91acb909"],"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":"2026-09-02T16:03:24.000Z","value":"5.9 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-615458bf555bdafdb9b12bfb91acb909"}],"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-615458bf555bdafdb9b12bfb91acb909","url":"https://github.com/advisories/GHSA-248h-974q-xrc2","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-248h-974q-xrc2","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T02:21:43.711Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-615458bf555bdafdb9b12bfb91acb909"],"technology":"com.getaxonflow:axonflow-sdk","known_exclusions":[],"conditions_summary":"## Summary\n\nThe AxonFlow SDK's `WebhookSubscription` (or equivalent) type did not expose the HMAC-SHA256 signing key returned by the platform's `CreateWebhook` endpoint. Without access to the secret through the typed SDK API, callers had no path to verify the `X-AxonFlow-Signature` header on incoming webhook deliveries. Affected callers had two unsatisfactory options:\n\n1. Skip signature verification entirely — accepting any payload from any source that knew the webhook URL.\n2. Hand-parse the raw HTTP JSON response to extract the secret, bypassing the type-safe SDK surface.\n\nThis advisory is filed across all four AxonFlow SDKs (Go, Python, TypeScript, Java) because the same defect and the same fix landed in each.\n\n## Affected versions\n\nVersions prior to 7.0.0.\n\n## Impact\n\nA webhook receiver using the SDK's typed API to handle inbound deliveries had no path to authenticate the source of incoming payloads. An attacker who learned the webhook URL — through misconfiguration, log leakage, observable network traffic during setup, or any other discovery channel — could forge webhook deliveries indistinguishable from legitimate ones, causing the receiving application to act on fabricated ev","public_affected_ranges":["< 7.0.0"]}],"null_published_at":"2026-11-03T10:03:31.358Z","source_updated_at":"2026-09-02T16:03:24.000Z","source_disclosed_at":"2026-05-06T23:16:58.000Z","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":"2026-11-02T02:21:43.711Z"}],"next_cursor":null,"snapshot_revision":"42594"}