[ CVE-2026-112006 · Published 18 Oct 2026 ]
Vulnerability in opentelemetry-exporter-otlp-proto-http
CVSS 6.5
EPSS <1%No fix listed yet
[ Description ]Official 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.
[ Fixes ]Fixes and patches
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-expo…
- github.com/open-telemetry/opentelemetry-python/blob/v1.44.0/exporter/opentelemetry-expo…
- github.com/open-telemetry/opentelemetry-python/commit/89cc68b9ea7e15969b4f042d63397bdc7…
- github.com/open-telemetry/opentelemetry-python/releases/tag/v1.45.0
- www.vulncheck.com/advisories/opentelemetry-opentelemetry-exporter-otlp-proto-http-1.5.0…