{"items":[{"id":"NVI-00013789","kind":"vulnerability","title":"OpenTelemetry-Go: Log gRPC exporter ignores env TLS certs, bypassing mTLS/pinning","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w34q-cm8f-9c5x","CVE-2026-81871"],"plain_summary":"GitHub lists this reviewed advisory for go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. 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-0483cbf48a62b5165a94425b9016be20"],"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":"2026-11-05T12:03:04.000Z","value":"0.196%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.09434. Missing scores are unknown.","source_id":"sr-0483cbf48a62b5165a94425b9016be20"}],"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-0504dcdd7623b1556e709ad1ad72d8ba","url":"https://github.com/advisories/GHSA-w34q-cm8f-9c5x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-w34q-cm8f-9c5x","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:49.409Z"},{"id":"sr-0483cbf48a62b5165a94425b9016be20","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-2026-81871","publisher":"FIRST EPSS","observed_at":"2026-11-06T07:17:46.399Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0504dcdd7623b1556e709ad1ad72d8ba"],"technology":"go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc","known_exclusions":[],"conditions_summary":"### Summary\n\nThe OTLP log gRPC exporter loads TLS settings from environment variables but does not apply them when creating gRPC transport credentials. Operators who rely on `OTEL_EXPORTER_OTLP_LOGS_CERTIFICATE`, `OTEL_EXPORTER_OTLP_CERTIFICATE`, or related client certificate variables for CA pinning or mTLS get a connection that falls back to system roots and omits the env-supplied client certificate. A network attacker who can intercept or spoof the collector connection with a system-trusted certificate can read or alter log telemetry. \n\nIntroduced in commit: d99c76f\n\n### Details\n\nThe affected code is in `exporters/otlp/otlplog/otlploggrpc`.\n\n`newConfig` resolves env-based TLS configuration into `cfg.tlsCfg` at `exporters/otlp/otlplog/otlploggrpc/config.go:106-116`. The finding also identifies `loadEnvTLS` at `config.go:451-492` as the code that builds a `*tls.Config` containing `RootCAs` and client certificates from `OTEL_EXPORTER_OTLP[_LOGS]_CERTIFICATE` and `OTEL_EXPORTER_OTLP[_LOGS]_CLIENT_CERTIFICATE`/`KEY`.\n\nHowever, `newGRPCDialOptions` in `exporters/otlp/otlplog/otlploggrpc/client.go:83-92` only checks `cfg.gRPCCredentials` and `cfg.insecure`. When neither is set, which i","public_affected_ranges":["< 0.21.0"]}],"null_published_at":"2026-11-07T07:07:46.828Z","source_updated_at":"2026-09-17T20:31:11.000Z","source_disclosed_at":"2026-09-17T20:31:09.000Z","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":"2026-11-01T14:29:49.409Z"},{"id":"NVI-00013789","kind":"vulnerability","title":"OpenTelemetry-Go: Log gRPC exporter ignores env TLS certs, bypassing mTLS/pinning","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-w34q-cm8f-9c5x","CVE-2026-81871"],"plain_summary":"GitHub lists this reviewed advisory for go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc. 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-0504dcdd7623b1556e709ad1ad72d8ba"],"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-0504dcdd7623b1556e709ad1ad72d8ba","url":"https://github.com/advisories/GHSA-w34q-cm8f-9c5x","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-w34q-cm8f-9c5x","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T14:29:49.409Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-0504dcdd7623b1556e709ad1ad72d8ba"],"technology":"go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc","known_exclusions":[],"conditions_summary":"### Summary\n\nThe OTLP log gRPC exporter loads TLS settings from environment variables but does not apply them when creating gRPC transport credentials. Operators who rely on `OTEL_EXPORTER_OTLP_LOGS_CERTIFICATE`, `OTEL_EXPORTER_OTLP_CERTIFICATE`, or related client certificate variables for CA pinning or mTLS get a connection that falls back to system roots and omits the env-supplied client certificate. A network attacker who can intercept or spoof the collector connection with a system-trusted certificate can read or alter log telemetry. \n\nIntroduced in commit: d99c76f\n\n### Details\n\nThe affected code is in `exporters/otlp/otlplog/otlploggrpc`.\n\n`newConfig` resolves env-based TLS configuration into `cfg.tlsCfg` at `exporters/otlp/otlplog/otlploggrpc/config.go:106-116`. The finding also identifies `loadEnvTLS` at `config.go:451-492` as the code that builds a `*tls.Config` containing `RootCAs` and client certificates from `OTEL_EXPORTER_OTLP[_LOGS]_CERTIFICATE` and `OTEL_EXPORTER_OTLP[_LOGS]_CLIENT_CERTIFICATE`/`KEY`.\n\nHowever, `newGRPCDialOptions` in `exporters/otlp/otlplog/otlploggrpc/client.go:83-92` only checks `cfg.gRPCCredentials` and `cfg.insecure`. When neither is set, which i","public_affected_ranges":["< 0.21.0"]}],"null_published_at":"2026-11-02T10:00:37.149Z","source_updated_at":"2026-09-17T20:31:11.000Z","source_disclosed_at":"2026-09-17T20:31:09.000Z","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":"2026-11-01T14:29:49.409Z"}],"next_cursor":null,"snapshot_revision":"42594"}