{"items":[{"id":"NVI-00017506","kind":"vulnerability","title":"slack-go `SecretsVerifier` accepts empty signing secret without precondition","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-gxhx-2686-5h9g"],"plain_summary":"GitHub lists this reviewed advisory for github.com/slack-go/slack. 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-0dca62cb844a023fdb43e7babd21a9a4"],"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":[],"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-0dca62cb844a023fdb43e7babd21a9a4","url":"https://github.com/advisories/GHSA-gxhx-2686-5h9g","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-gxhx-2686-5h9g","publisher":"GitHub Advisory Database","observed_at":"2026-11-05T19:05:04.022Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0dca62cb844a023fdb43e7babd21a9a4"],"technology":"github.com/slack-go/slack","known_exclusions":[],"conditions_summary":"`SecretsVerifier` in slack-go/slack before v0.23.1 accepts an empty signing secret without error. If an application is misconfigured (e.g., an unset or empty `SLACK_SIGNING_SECRET`), `NewSecretsVerifier` builds an HMAC-SHA256 keyed with an empty string, allowing an unauthenticated attacker to forge a valid `X-Slack-Signature` and bypass Slack request authentication. Fixed in v0.23.1, which rejects empty secrets with `ErrInvalidConfiguration`. This is patched in version 0.23.1.","public_affected_ranges":["< 0.23.1"]}],"null_published_at":"2026-11-05T19:10:21.400Z","source_updated_at":"2026-06-29T15:38:03.000Z","source_disclosed_at":"2026-05-14T20:52:55.000Z","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":"2026-11-05T19:05:04.022Z"}],"next_cursor":null,"snapshot_revision":"42594"}