{"action":"Upgrade go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc to 0.21.0 or later.","affected":[{"fixed":"0.21.0","introduced":"0"}],"component":"go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc","cve_ids":["CVE-2026-81871"],"ecosystem":"Go","epss":0.00196,"exploited":false,"fixed_versions":["0.21.0"],"ghsa_id":"GHSA-w34q-cm8f-9c5x","id":"tcs_01M5KGV4H5EV7Q05M7308HS7BS","modified_at":"2026-09-28T17:00:16.963674731Z","published_at":"2026-09-28T16:43:40Z","references":["https://osv.dev/vulnerability/GO-2026-6508","https://github.com/open-telemetry/opentelemetry-go/security/advisories/GHSA-w34q-cm8f-9c5x","https://nvd.nist.gov/vuln/detail/CVE-2026-81871","https://github.com/open-telemetry/opentelemetry-go/commit/c65d435b43e5e6b82310e6b18dd4cdcb8ac63a0c","https://github.com/open-telemetry/opentelemetry-go/releases/tag/exporters/otlp/otlplog/otlploggrpc/v0.21.0"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-6508","url":"https://osv.dev/vulnerability/GO-2026-6508"}],"summary":"OpenTelemetry-Go: Log gRPC exporter ignores env TLS certs, bypassing mTLS/pinning in go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc"}