{"id":"CVE-2026-112006","revision":"b8d19f76c65f4af3b914eca390a5bde8","records":[{"revision":"b8d19f76c65f4af3b914eca390a5bde8","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-112006","aliases":[],"title":"OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 Improper Certificate Validation","description":"OpenTelemetry opentelemetry-exporter-otlp-proto-http 1.5.0 before 1.45.0 contains an improper certificate validation vulnerability that disables TLS verification when OTEL_EXPORTER_OTLP_CERTIFICATE variables are empty strings. Man-in-the-middle attackers can impersonate the collector to read or alter exported traces, metrics, and logs, including authentication headers from OTEL_EXPORTER_OTLP_HEADERS.","state":0,"publishedAt":"2026-10-18T11:38:29.855+00:00","modifiedAt":"2026-10-19T15:59:16.298+00:00","affected":[{"ecosystem":"https://pypi.org","name":"opentelemetry-exporter-otlp-proto-http","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"OpenTelemetry\",\n                    \"product\": \"opentelemetry-exporter-otlp-proto-http\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"1.5.0\",\n                            \"lessThan\": \"1.45.0\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"semver\"\n                        }\n                    ],\n                    \"packageURL\": \"pkg:pypi/opentelemetry-exporter-otlp-proto-http\",\n                    \"collectionURL\": \"https://pypi.org\",\n                    \"repo\": \"https://github.com/open-telemetry/opentelemetry-python\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N","score":8.3,"severity":"HIGH"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","score":6.5,"severity":"MEDIUM"}],"references":["https://github.com/open-telemetry/opentelemetry-python/commit/89cc68b9ea7e15969b4f042d63397bdc74a3d60e","https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0","https://github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py#L93-L96","https://github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-exporter-otlp-proto-http/src/opentelemetry/exporter/otlp/proto/http/trace_exporter/__init__.py#L170-L185","https://www.vulncheck.com/advisories/opentelemetry-opentelemetry-exporter-otlp-proto-http-1.5.0-before-1.45.0-improper-certificate-validation"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-112006","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-112006","identifiers":["CVE-2026-112006"]},"retained":false,"historicalAffected":[]}],"coverage":[]}