{"items":[{"id":"NVI-00014002","kind":"vulnerability","title":"RabbitMQ amqp091-go: Silent Data Truncation and State Corruption via Shortstr Integer Overflow","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j497-x9hr-x34x","CVE-2026-77408"],"plain_summary":"GitHub lists this reviewed advisory for github.com/rabbitmq/amqp091-go. 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-2fed7aba29397eff3775d8e78a2d516b"],"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-2fed7aba29397eff3775d8e78a2d516b","url":"https://github.com/advisories/GHSA-j497-x9hr-x34x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-j497-x9hr-x34x","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T19:09:30.244Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2fed7aba29397eff3775d8e78a2d516b"],"technology":"github.com/rabbitmq/amqp091-go","known_exclusions":[],"conditions_summary":"## Summary\nA data integrity and protocol corruption vulnerability exists in the AMQP client's property serialization logic. When encoding AMQP short string (`shortstr`) fields—such as identifiers, routing strings, and content metadata—the length of the string is explicitly cast to a fixed-size 8-bit unsigned integer (`uint8`). \n\nIf an application provides a property string exceeding 255 bytes, the length counter silently wraps around (e.g., a length of 300 wraps to 44). As a result, the parser writes only a truncated portion of the string into the outgoing connection buffer without returning an error. This leads to silent data corruption, broken RPC routing, and unpredictable broker-side state behavior.\n\n---\n\n## Vulnerability Details\n\n### Mechanism\nThe vulnerability resides in the wire-level serialization logic for application publishing properties:\n\n```go\n// write.go:246\nlength := uint8(len(b))  // wraps silently when len(b) > 255 (e.g., 300 -> 44)\n```\n\nBecause Go allows silent integer truncation during explicit type casting, lengths larger than $2^8 - 1$ lose their most significant bits. The underlying stream writer reads `length` to determine how many bytes to pull from the buff","public_affected_ranges":["< 1.13.0"]}],"null_published_at":"2026-11-02T10:00:37.196Z","source_updated_at":"2026-09-17T17:04:16.000Z","source_disclosed_at":"2026-09-17T17:04:15.000Z","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":"2026-11-01T19:09:30.244Z"}],"next_cursor":null,"snapshot_revision":"42594"}