{"items":[{"id":"NVI-00012985","kind":"vulnerability","title":"aws-smithy-json: Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected.","NVD lastModified does not establish freshness of every associated CPE record."],"lifecycle":"active","identifiers":["GHSA-8ffr-xgwf-xj56","CVE-2026-18140"],"plain_summary":"GitHub lists this reviewed advisory for aws-smithy-json. 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-4840ddcc49099c3684b3ad561e7c2fe9"],"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":"2026-10-02T22:44:53.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2d2bd737eccd9e6799917de1b398fa14"},{"kind":"CVSS","as_of":"2026-10-23T22:10:00.160Z","value":"7.5 HIGH (3.1)","meaning":"ff89ba41-3aa1-4d27-914a-91399e9639e5 severity; no combined Null risk score.","source_id":"sr-4840ddcc49099c3684b3ad561e7c2fe9"},{"kind":"CVSS","as_of":"2026-10-23T22:10:00.160Z","value":"8.7 HIGH (4.0)","meaning":"ff89ba41-3aa1-4d27-914a-91399e9639e5 severity; no combined Null risk score.","source_id":"sr-4840ddcc49099c3684b3ad561e7c2fe9"}],"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-2d2bd737eccd9e6799917de1b398fa14","url":"https://github.com/advisories/GHSA-8ffr-xgwf-xj56","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8ffr-xgwf-xj56","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:40:00.567Z"},{"id":"sr-4840ddcc49099c3684b3ad561e7c2fe9","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18140","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-18140","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:59:32.503Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2d2bd737eccd9e6799917de1b398fa14"],"technology":"aws-smithy-json","known_exclusions":[],"conditions_summary":"### Summary\nSmithy-RS is a Rust code generation and runtime framework that generates HTTP clients and servers from Smithy interface definitions, powering the AWS SDK for Rust and custom service implementations. An issue exists which allows uncontrolled recursion in the unknown-key skip path of the Amazon aws-smithy-json runtime crate in versions 0.62.6 and earlier.\n\n### Impact\nUncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7, which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small HTTP request containing deeply nested JSON to a smithy-rs generated server.\n\nImpacted versions: aws-smithy-json <= 0.62.6\n\n### Patches\nThis issue has been addressed in aws-smithy-json version 0.62.7. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n### Workarounds\nThere are no workarounds besides updating to the patched version.\n\n### References\nIf you have any questions or comments about this advisory, AWS asks that you ","public_affected_ranges":["<= 0.62.6"]}],"null_published_at":"2026-11-05T19:10:23.238Z","source_updated_at":"2026-10-02T22:44:53.000Z","source_disclosed_at":"2026-10-02T22:44:52.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-01T01:40:00.567Z"},{"id":"NVI-00012985","kind":"vulnerability","title":"aws-smithy-json: Uncontrolled recursion in the aws-smithy-json unknown-key skip path allows unauthenticated remote denial of service in smithy-rs generated servers","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-8ffr-xgwf-xj56","CVE-2026-18140"],"plain_summary":"GitHub lists this reviewed advisory for aws-smithy-json. 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-2d2bd737eccd9e6799917de1b398fa14"],"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":"2026-10-02T22:44:53.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-2d2bd737eccd9e6799917de1b398fa14"}],"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-2d2bd737eccd9e6799917de1b398fa14","url":"https://github.com/advisories/GHSA-8ffr-xgwf-xj56","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-8ffr-xgwf-xj56","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T01:40:00.567Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-2d2bd737eccd9e6799917de1b398fa14"],"technology":"aws-smithy-json","known_exclusions":[],"conditions_summary":"### Summary\nSmithy-RS is a Rust code generation and runtime framework that generates HTTP clients and servers from Smithy interface definitions, powering the AWS SDK for Rust and custom service implementations. An issue exists which allows uncontrolled recursion in the unknown-key skip path of the Amazon aws-smithy-json runtime crate in versions 0.62.6 and earlier.\n\n### Impact\nUncontrolled recursion in the unknown-key skip path of the aws-smithy-json runtime crate before 0.62.7, which the smithy-rs code generator invokes from every generated struct deserializer, might allow remote unauthenticated users to cause a denial of service (process abort via stack exhaustion) via a single small HTTP request containing deeply nested JSON to a smithy-rs generated server.\n\nImpacted versions: aws-smithy-json <= 0.62.6\n\n### Patches\nThis issue has been addressed in aws-smithy-json version 0.62.7. We recommend upgrading to the latest version and ensuring any forked or derivative code is patched to incorporate the new fixes.\n\n### Workarounds\nThere are no workarounds besides updating to the patched version.\n\n### References\nIf you have any questions or comments about this advisory, AWS asks that you ","public_affected_ranges":["<= 0.62.6"]}],"null_published_at":"2026-11-01T07:29:12.906Z","source_updated_at":"2026-10-02T22:44:53.000Z","source_disclosed_at":"2026-10-02T22:44:52.000Z","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":"2026-11-01T01:40:00.567Z"}],"next_cursor":null,"snapshot_revision":"42594"}