{"items":[{"id":"NVI-00016015","kind":"vulnerability","title":"dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS","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-mw54-j2v2-42hr","CVE-2026-50271"],"plain_summary":"GitHub lists this reviewed advisory for ddtrace. 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-098fa8fda9350b198195fbd8f8318376"],"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":"2026-07-15T22:55:25.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-04fbd5da9fea9925b6f439883581e935"},{"kind":"CVSS","as_of":"2026-10-24T20:10:00.137Z","value":"7.5 HIGH (3.1)","meaning":"security-advisories@github.com severity; no combined Null risk score.","source_id":"sr-34e503fd4b0e8262b6e919d9b0e67774"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.793%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56491. Missing scores are unknown.","source_id":"sr-098fa8fda9350b198195fbd8f8318376"}],"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-04fbd5da9fea9925b6f439883581e935","url":"https://github.com/advisories/GHSA-mw54-j2v2-42hr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-mw54-j2v2-42hr","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"},{"id":"sr-34e503fd4b0e8262b6e919d9b0e67774","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-50271","basis":"official_catalog","notes":"This product uses data from the NVD API but is not endorsed or certified by the NVD.","title":"CVE-2026-50271","publisher":"NIST National Vulnerability Database","observed_at":"2026-11-08T01:47:50.916Z"},{"id":"sr-098fa8fda9350b198195fbd8f8318376","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-2026-50271","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.379Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-04fbd5da9fea9925b6f439883581e935"],"technology":"ddtrace","known_exclusions":[],"conditions_summary":"### Impact\nDatadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DD_TRACE_BAGGAGE_MAX_ITEMS (default 64) and DD_TRACE_BAGGAGE_MAX_BYTES (default 8192) limits were applied only to baggage injection, not extraction. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs (or a single very large value). The tracer allocates a hash-map entry for each pair on every request, causing unbounded CPU and memory consumption and enabling a remote Denial of Service against any HTTP service that has the baggage propagation style enabled.\nThe baggage propagation style is enabled by default in most affected tracers, so any internet-facing service that has been instrumented with an affected tracer version is exposed unless the propagation style has been explicitly narrowed.\n\n### Patches\nThis is resolved in version 4.8.2 and later of the `dd-trace-py` library\n\n### Workarounds\nIf users cannot upgrade immediately:\n1. Disable `baggage` extraction by removing `baggage` from `DD_TRACE_PROPAGATION","public_affected_ranges":["< 4.8.2"]}],"null_published_at":"2026-11-08T19:53:44.048Z","source_updated_at":"2026-07-15T22:55:25.000Z","source_disclosed_at":"2026-07-15T22:55:24.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Source facts changed; compare the preserved prior revision.","null_first_observed_at":"2026-11-04T09:59:26.779Z"},{"id":"NVI-00016015","kind":"vulnerability","title":"dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mw54-j2v2-42hr","CVE-2026-50271"],"plain_summary":"GitHub lists this reviewed advisory for ddtrace. 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-098fa8fda9350b198195fbd8f8318376"],"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":"2026-07-15T22:55:25.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-04fbd5da9fea9925b6f439883581e935"},{"kind":"EPSS","as_of":"2026-11-05T12:03:04.000Z","value":"0.793%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.56491. Missing scores are unknown.","source_id":"sr-098fa8fda9350b198195fbd8f8318376"}],"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-04fbd5da9fea9925b6f439883581e935","url":"https://github.com/advisories/GHSA-mw54-j2v2-42hr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-mw54-j2v2-42hr","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"},{"id":"sr-098fa8fda9350b198195fbd8f8318376","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-2026-50271","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.379Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-04fbd5da9fea9925b6f439883581e935"],"technology":"ddtrace","known_exclusions":[],"conditions_summary":"### Impact\nDatadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DD_TRACE_BAGGAGE_MAX_ITEMS (default 64) and DD_TRACE_BAGGAGE_MAX_BYTES (default 8192) limits were applied only to baggage injection, not extraction. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs (or a single very large value). The tracer allocates a hash-map entry for each pair on every request, causing unbounded CPU and memory consumption and enabling a remote Denial of Service against any HTTP service that has the baggage propagation style enabled.\nThe baggage propagation style is enabled by default in most affected tracers, so any internet-facing service that has been instrumented with an affected tracer version is exposed unless the propagation style has been explicitly narrowed.\n\n### Patches\nThis is resolved in version 4.8.2 and later of the `dd-trace-py` library\n\n### Workarounds\nIf users cannot upgrade immediately:\n1. Disable `baggage` extraction by removing `baggage` from `DD_TRACE_PROPAGATION","public_affected_ranges":["< 4.8.2"]}],"null_published_at":"2026-11-08T15:11:49.415Z","source_updated_at":"2026-07-15T22:55:25.000Z","source_disclosed_at":"2026-07-15T22:55:24.000Z","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":"2026-11-04T09:59:26.779Z"},{"id":"NVI-00016015","kind":"vulnerability","title":"dd-trace-py: Improper parsing of W3C baggage headers may lead to DoS","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-mw54-j2v2-42hr","CVE-2026-50271"],"plain_summary":"GitHub lists this reviewed advisory for ddtrace. 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-04fbd5da9fea9925b6f439883581e935"],"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":"2026-07-15T22:55:25.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-04fbd5da9fea9925b6f439883581e935"}],"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-04fbd5da9fea9925b6f439883581e935","url":"https://github.com/advisories/GHSA-mw54-j2v2-42hr","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-mw54-j2v2-42hr","publisher":"GitHub Advisory Database","observed_at":"2026-11-04T09:59:26.779Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-04fbd5da9fea9925b6f439883581e935"],"technology":"ddtrace","known_exclusions":[],"conditions_summary":"### Impact\nDatadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing item-count or byte-size limits on the extract path. The DD_TRACE_BAGGAGE_MAX_ITEMS (default 64) and DD_TRACE_BAGGAGE_MAX_BYTES (default 8192) limits were applied only to baggage injection, not extraction. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs (or a single very large value). The tracer allocates a hash-map entry for each pair on every request, causing unbounded CPU and memory consumption and enabling a remote Denial of Service against any HTTP service that has the baggage propagation style enabled.\nThe baggage propagation style is enabled by default in most affected tracers, so any internet-facing service that has been instrumented with an affected tracer version is exposed unless the propagation style has been explicitly narrowed.\n\n### Patches\nThis is resolved in version 4.8.2 and later of the `dd-trace-py` library\n\n### Workarounds\nIf users cannot upgrade immediately:\n1. Disable `baggage` extraction by removing `baggage` from `DD_TRACE_PROPAGATION","public_affected_ranges":["< 4.8.2"]}],"null_published_at":"2026-11-04T10:04:27.864Z","source_updated_at":"2026-07-15T22:55:25.000Z","source_disclosed_at":"2026-07-15T22:55:24.000Z","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":"2026-11-04T09:59:26.779Z"}],"next_cursor":null,"snapshot_revision":"42594"}