{"items":[{"id":"NVI-00008933","kind":"vulnerability","title":"OpenTelemetry Python: Unbounded memory allocation in Jaeger baggage propagation","revision":3,"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-f5m9-jfrj-jjj7","CVE-2026-116694"],"plain_summary":"GitHub lists this reviewed advisory for opentelemetry-propagator-jaeger. 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-38fae8d4b6b220efa103bd807d4533c8"],"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":"2026-10-28T17:18:05.527Z","value":"6.3 MEDIUM (4.0)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-1995f8fed35211d09d3d81c7a29af87e"},{"kind":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.378%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31766. Missing scores are unknown.","source_id":"sr-38fae8d4b6b220efa103bd807d4533c8"}],"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-3b4a3cebfacc94206732d339f47dfc6f","url":"https://github.com/advisories/GHSA-f5m9-jfrj-jjj7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f5m9-jfrj-jjj7","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:36.327Z"},{"id":"sr-1995f8fed35211d09d3d81c7a29af87e","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-116694","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-116694","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-03T09:59:08.616Z"},{"id":"sr-38fae8d4b6b220efa103bd807d4533c8","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-116694","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3b4a3cebfacc94206732d339f47dfc6f"],"technology":"opentelemetry-propagator-jaeger","known_exclusions":[],"conditions_summary":"## Summary\n\n`JaegerPropagator.extract()` in `opentelemetry-propagator-jaeger` did not enforce limits when extracting inbound `uberctx-*` baggage headers. Attacker-controlled baggage could cause unnecessary CPU work and short-lived heap allocations while processing more data than the propagator should accept.\n\n## Impact\n\nServices that enable the optional Jaeger propagator and accept untrusted inbound propagation headers may experience increased per-request resource usage. This can contribute to denial-of-service risk when transport-level limits are absent or configured above the baggage limits.\n\nThe practical impact for most Python web deployments is limited. The package must be installed separately, and the Jaeger propagator is not enabled by the default OpenTelemetry Python configuration.\n\nCommon Python web servers also constrain request headers before they reach the propagator:\n\n- Gunicorn allows a maximum of 100 request-header fields and 8,190 bytes per field by default.\n- Uvicorn’s h11 implementation limits its incomplete-event buffer to 16,384 bytes by default.\n\nThe risk is higher for non-HTTP transports, custom `TextMapGetter` implementations, or deployments where server and ","public_affected_ranges":["<= 1.44.0"]}],"null_published_at":"2026-11-03T10:03:31.374Z","source_updated_at":"2026-10-27T21:06:56.000Z","source_disclosed_at":"2026-10-27T21:06:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-10-31T21:56:36.327Z"},{"id":"NVI-00008933","kind":"vulnerability","title":"OpenTelemetry Python: Unbounded memory allocation in Jaeger baggage propagation","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f5m9-jfrj-jjj7","CVE-2026-116694"],"plain_summary":"GitHub lists this reviewed advisory for opentelemetry-propagator-jaeger. 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-38fae8d4b6b220efa103bd807d4533c8"],"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":"EPSS","as_of":"2026-10-31T12:00:27.000Z","value":"0.378%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.31766. Missing scores are unknown.","source_id":"sr-38fae8d4b6b220efa103bd807d4533c8"}],"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-3b4a3cebfacc94206732d339f47dfc6f","url":"https://github.com/advisories/GHSA-f5m9-jfrj-jjj7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f5m9-jfrj-jjj7","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:36.327Z"},{"id":"sr-38fae8d4b6b220efa103bd807d4533c8","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-116694","publisher":"FIRST EPSS","observed_at":"2026-10-31T22:06:15.374Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3b4a3cebfacc94206732d339f47dfc6f"],"technology":"opentelemetry-propagator-jaeger","known_exclusions":[],"conditions_summary":"## Summary\n\n`JaegerPropagator.extract()` in `opentelemetry-propagator-jaeger` did not enforce limits when extracting inbound `uberctx-*` baggage headers. Attacker-controlled baggage could cause unnecessary CPU work and short-lived heap allocations while processing more data than the propagator should accept.\n\n## Impact\n\nServices that enable the optional Jaeger propagator and accept untrusted inbound propagation headers may experience increased per-request resource usage. This can contribute to denial-of-service risk when transport-level limits are absent or configured above the baggage limits.\n\nThe practical impact for most Python web deployments is limited. The package must be installed separately, and the Jaeger propagator is not enabled by the default OpenTelemetry Python configuration.\n\nCommon Python web servers also constrain request headers before they reach the propagator:\n\n- Gunicorn allows a maximum of 100 request-header fields and 8,190 bytes per field by default.\n- Uvicorn’s h11 implementation limits its incomplete-event buffer to 16,384 bytes by default.\n\nThe risk is higher for non-HTTP transports, custom `TextMapGetter` implementations, or deployments where server and ","public_affected_ranges":["<= 1.44.0"]}],"null_published_at":"2026-10-31T22:27:15.293Z","source_updated_at":"2026-10-27T21:06:56.000Z","source_disclosed_at":"2026-10-27T21:06:54.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-10-31T21:56:36.327Z"},{"id":"NVI-00008933","kind":"vulnerability","title":"OpenTelemetry Python: Unbounded memory allocation in Jaeger baggage propagation","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-f5m9-jfrj-jjj7","CVE-2026-116694"],"plain_summary":"GitHub lists this reviewed advisory for opentelemetry-propagator-jaeger. 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-3b4a3cebfacc94206732d339f47dfc6f"],"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-3b4a3cebfacc94206732d339f47dfc6f","url":"https://github.com/advisories/GHSA-f5m9-jfrj-jjj7","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-f5m9-jfrj-jjj7","publisher":"GitHub Advisory Database","observed_at":"2026-10-31T21:56:36.327Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3b4a3cebfacc94206732d339f47dfc6f"],"technology":"opentelemetry-propagator-jaeger","known_exclusions":[],"conditions_summary":"## Summary\n\n`JaegerPropagator.extract()` in `opentelemetry-propagator-jaeger` did not enforce limits when extracting inbound `uberctx-*` baggage headers. Attacker-controlled baggage could cause unnecessary CPU work and short-lived heap allocations while processing more data than the propagator should accept.\n\n## Impact\n\nServices that enable the optional Jaeger propagator and accept untrusted inbound propagation headers may experience increased per-request resource usage. This can contribute to denial-of-service risk when transport-level limits are absent or configured above the baggage limits.\n\nThe practical impact for most Python web deployments is limited. The package must be installed separately, and the Jaeger propagator is not enabled by the default OpenTelemetry Python configuration.\n\nCommon Python web servers also constrain request headers before they reach the propagator:\n\n- Gunicorn allows a maximum of 100 request-header fields and 8,190 bytes per field by default.\n- Uvicorn’s h11 implementation limits its incomplete-event buffer to 16,384 bytes by default.\n\nThe risk is higher for non-HTTP transports, custom `TextMapGetter` implementations, or deployments where server and ","public_affected_ranges":["<= 1.44.0"]}],"null_published_at":"2026-10-31T22:13:27.123Z","source_updated_at":"2026-10-27T21:06:56.000Z","source_disclosed_at":"2026-10-27T21:06:54.000Z","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":"2026-10-31T21:56:36.327Z"}],"next_cursor":null,"snapshot_revision":"42594"}