{"items":[{"id":"NVI-00016256","kind":"vulnerability","title":"protobufjs: Denial of Service via infinite loop in .proto option parsing","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-j3f2-48v5-ccww","CVE-2026-59877"],"plain_summary":"GitHub lists this reviewed advisory for protobufjs, protobufjs. 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-578d3c5160ecb6e15e33379bbbd44311"],"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":"2026-07-20T22:03:01.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-578d3c5160ecb6e15e33379bbbd44311"}],"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-578d3c5160ecb6e15e33379bbbd44311","url":"https://github.com/advisories/GHSA-j3f2-48v5-ccww","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-j3f2-48v5-ccww","publisher":"GitHub Advisory Database","observed_at":"2026-11-03T22:35:18.117Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-578d3c5160ecb6e15e33379bbbd44311"],"technology":"protobufjs","known_exclusions":[],"conditions_summary":"## Summary\n\nprotobufjs parsed option names by advancing through schema tokens until it reached an `=` token, without checking for end of input. A crafted `.proto` schema that opens an option declaration but ends prematurely could cause the option parser to loop without ever terminating.\n\nThis affects the reflection parsing path (`parse`, `Root.load`, `Root.loadSync`).\n\n## Impact\n\nAn attacker who can provide or influence `.proto` schema text parsed by an application may be able to cause the parsing call to never return. Because Node.js is single-threaded, the blocked event loop prevents all other work in the process, resulting in a denial of service that persists until the process is externally terminated.\n\nApplications that only encode or decode protobuf binary data with trusted schemas are not directly affected.\n\n## Preconditions\n\n- The application must parse `.proto` schema text influenced by an attacker.\n- The schema must be parsed through APIs such as `parse`, `Root.load`, or `Root.loadSync`.\n- The crafted input must begin an option declaration that ends before its `=` assignment.\n\n## Workarounds\n\nDo not parse `.proto` schemas from untrusted sources with affected versions. If u","public_affected_ranges":[">= 7.5.0, <= 7.6.4"]},{"certainty":"source_listed","source_ids":["sr-578d3c5160ecb6e15e33379bbbd44311"],"technology":"protobufjs","known_exclusions":[],"conditions_summary":"## Summary\n\nprotobufjs parsed option names by advancing through schema tokens until it reached an `=` token, without checking for end of input. A crafted `.proto` schema that opens an option declaration but ends prematurely could cause the option parser to loop without ever terminating.\n\nThis affects the reflection parsing path (`parse`, `Root.load`, `Root.loadSync`).\n\n## Impact\n\nAn attacker who can provide or influence `.proto` schema text parsed by an application may be able to cause the parsing call to never return. Because Node.js is single-threaded, the blocked event loop prevents all other work in the process, resulting in a denial of service that persists until the process is externally terminated.\n\nApplications that only encode or decode protobuf binary data with trusted schemas are not directly affected.\n\n## Preconditions\n\n- The application must parse `.proto` schema text influenced by an attacker.\n- The schema must be parsed through APIs such as `parse`, `Root.load`, or `Root.loadSync`.\n- The crafted input must begin an option declaration that ends before its `=` assignment.\n\n## Workarounds\n\nDo not parse `.proto` schemas from untrusted sources with affected versions. If u","public_affected_ranges":[">= 8.0.0, <= 8.6.5"]}],"null_published_at":"2026-11-04T10:04:27.924Z","source_updated_at":"2026-07-20T22:03:01.000Z","source_disclosed_at":"2026-07-20T22:03:00.000Z","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":"2026-11-03T22:35:18.117Z"}],"next_cursor":null,"snapshot_revision":"42594"}