{"id":"CVE-2026-112006","aliases":["DEBIAN-CVE-2026-112006","EUVD-2026-103459","GHSA-6469-8p9h-mmvm","UBUNTU-CVE-2026-112006"],"status":"published","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.","severity":{"version":"4.0","score":8.3,"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","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00215,"percentile":0.11962,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-295"],"published":"2026-10-18T11:38:29Z","modified":"2026-10-29T23:00:06Z","fixes":[{"ecosystem":"Debian:14","package":"python-opentelemetry","fixed_in":["1.45.1-1"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:14","package":"python-opentelemetry","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.45.1-1"}]}],"versions":["1.35.0-2","1.38.0-1","1.38.0-2","1.39.1-1","1.39.1-2","1.40.0-1","1.41.0-1","1.41.0-2","1.42.1-1","1.43.0-1","1.44.0-1","1.44.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.10","package":"python-opentelemetry","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.39.1-2","1.42.1-1","1.43.0-1","1.44.0-1","1.44.0-2"]},{"source":"osv","ecosystem":"Ubuntu:26.04:LTS","package":"python-opentelemetry","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.38.0-1","1.38.0-2","1.39.1-1","1.39.1-2"]}],"products":[{"vendor":"opentelemetry","product":"opentelemetry-exporter-otlp-proto-http"}],"references":[{"url":"https://github.com/open-telemetry/opentelemetry-python/commit/89cc68b9ea7e15969b4f042d63397bdc74a3d60e","tags":["patch","fix"]},{"url":"https://github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0","tags":["release-notes","advisory"]},{"url":"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","tags":["technical-description","article"]},{"url":"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","tags":["technical-description","article"]},{"url":"https://www.vulncheck.com/advisories/opentelemetry-opentelemetry-exporter-otlp-proto-http-1.5.0-before-1.45.0-improper-certificate-validation","tags":["third-party-advisory","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-112006","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-6469-8p9h-mmvm"},{"url":"https://pypi.org","tags":["web"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/112xxx/CVE-2026-112006.json","tags":["advisory"]},{"url":"https://github.com/open-telemetry/opentelemetry-python","tags":["package"]},{"url":"https://security-tracker.debian.org/tracker/CVE-2026-112006","tags":["advisory"]},{"url":"https://ubuntu.com/security/CVE-2026-112006","tags":["report"]},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-112006","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2026-112006","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. 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