{"items":[{"id":"NVI-00010116","kind":"vulnerability","title":"OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api","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-xcq7-p3pf-p88h","CVE-2026-114603"],"plain_summary":"GitHub lists this reviewed advisory for opentelemetry-api. 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-2de50999c6001946fc8dfc3e122ea01b"],"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":"2026-10-22T16:22:08.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1b0cc6869f96f94a8627d158448b3d6c"},{"kind":"CVSS","as_of":"2026-10-29T04:18:24.130Z","value":"5.3 MEDIUM (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-2de50999c6001946fc8dfc3e122ea01b"}],"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-1b0cc6869f96f94a8627d158448b3d6c","url":"https://github.com/advisories/GHSA-xcq7-p3pf-p88h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xcq7-p3pf-p88h","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"},{"id":"sr-2de50999c6001946fc8dfc3e122ea01b","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114603","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-114603","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:58:52.895Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1b0cc6869f96f94a8627d158448b3d6c"],"technology":"opentelemetry-api","known_exclusions":[],"conditions_summary":"## Summary\n`TraceState.from_header` splits the inbound W3C `tracestate` header with a regular expression that starts with an unbounded optional-whitespace run, and no length limit is applied first. A run of spaces or tabs that is not followed by a comma costs O(N²) CPU. A single unauthenticated request with a ~100 KB `tracestate` keeps the handling worker busy for ~6 s (spaces) to ~12 s (tabs); under an asyncio server it blocks every other connection for that time.\n\n## Affected component / version\n- Package: `opentelemetry-api` (pip) — `opentelemetry/trace/span.py` (`TraceState.from_header`), reached from `opentelemetry/trace/propagation/tracecontext.py` (`TraceContextTextMapPropagator.extract`).\n- Confirmed in `main` (5e8083e8) and in the v1.44.0 and v1.45.0 tags; the same pattern is present back to v1.0.0 (introduced by #1599, March 2021). Not exhaustively verified against every release in between.\n- Reachable with the default propagators (`OTEL_PROPAGATORS` defaults to `tracecontext,baggage`) from any server instrumentation that calls `propagate.extract()`, for example `opentelemetry-instrumentation-asgi`.\n\n## Details\n\n1. The header reaches the parser without any length check:\n\n","public_affected_ranges":["<= 1.45.0"]}],"null_published_at":"2026-11-03T10:03:31.390Z","source_updated_at":"2026-10-22T16:22:08.000Z","source_disclosed_at":"2026-10-22T16:22:07.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T22:07:30.906Z"},{"id":"NVI-00010116","kind":"vulnerability","title":"OpenTelemetry Python: Unbounded tracestate parsing in opentelemetry-api","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-xcq7-p3pf-p88h","CVE-2026-114603"],"plain_summary":"GitHub lists this reviewed advisory for opentelemetry-api. 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-1b0cc6869f96f94a8627d158448b3d6c"],"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":"2026-10-22T16:22:08.000Z","value":"5.3 medium","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-1b0cc6869f96f94a8627d158448b3d6c"}],"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-1b0cc6869f96f94a8627d158448b3d6c","url":"https://github.com/advisories/GHSA-xcq7-p3pf-p88h","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-xcq7-p3pf-p88h","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T22:07:30.906Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1b0cc6869f96f94a8627d158448b3d6c"],"technology":"opentelemetry-api","known_exclusions":[],"conditions_summary":"## Summary\n`TraceState.from_header` splits the inbound W3C `tracestate` header with a regular expression that starts with an unbounded optional-whitespace run, and no length limit is applied first. A run of spaces or tabs that is not followed by a comma costs O(N²) CPU. A single unauthenticated request with a ~100 KB `tracestate` keeps the handling worker busy for ~6 s (spaces) to ~12 s (tabs); under an asyncio server it blocks every other connection for that time.\n\n## Affected component / version\n- Package: `opentelemetry-api` (pip) — `opentelemetry/trace/span.py` (`TraceState.from_header`), reached from `opentelemetry/trace/propagation/tracecontext.py` (`TraceContextTextMapPropagator.extract`).\n- Confirmed in `main` (5e8083e8) and in the v1.44.0 and v1.45.0 tags; the same pattern is present back to v1.0.0 (introduced by #1599, March 2021). Not exhaustively verified against every release in between.\n- Reachable with the default propagators (`OTEL_PROPAGATORS` defaults to `tracecontext,baggage`) from any server instrumentation that calls `propagate.extract()`, for example `opentelemetry-instrumentation-asgi`.\n\n## Details\n\n1. The header reaches the parser without any length check:\n\n","public_affected_ranges":["<= 1.45.0"]}],"null_published_at":"2026-10-31T22:13:48.416Z","source_updated_at":"2026-10-22T16:22:08.000Z","source_disclosed_at":"2026-10-22T16:22:07.000Z","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":"2026-10-31T22:07:30.906Z"}],"next_cursor":null,"snapshot_revision":"42594"}