TI-2026-76158 Aliases CVE-2026-112006 GHSA-6469-8p9h-mmvm

Improper certificate validation in OpenTelemetry OTLP HTTP exporter

LOW 35CWE-295Published 2026-10-18 · Updated 2026-10-19

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: Present
Impact type: Spoofing
Confidentiality · integrity · availability: High · Low · None
Fix status: Partial Red Hat: 11 without a fix

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-295.

Summary

The OpenTelemetry opentelemetry-exporter-otlp-proto-http package from 1.5.0 before 1.45.0 disables TLS certificate verification when the OTEL_EXPORTER_OTLP_CERTIFICATE variables are set to empty strings. A man-in-the-middle attacker can impersonate the collector to read or alter exported traces, metrics and logs, including authentication headers from OTEL_EXPORTER_OTLP_HEADERS. The flaw is an improper certificate validation issue (CWE-295).

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00215 11th percentileScored 2026-11-07

Fix Partial opentelemetry-exporter-otlp-proto-http (OpenTelemetry): 1.45.0Red Hat: 11 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
open-telemetry	opentelemetry-exporter-otlp-proto-http	1.5.0 to before 1.45.0	1.45.0	Patch available	CNA

opentelemetry-exporter-otlp-proto-http Vendoropen-telemetry Affected 1.5.0 to before 1.45.0 Fixed in 1.45.0 Patch available CNA

Remediation

Upgrade opentelemetry-exporter-otlp-proto-http to 1.45.0. Red Hat has no fix planned for Exploit Intelligence and Red Hat Update Infrastructure 4 for Cloud Providers, and no fix available for Ansible Automation Orchestrator 2026, Lightspeed Core, OpenShift Lightspeed, Red Hat AI Inference Server and other products.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Fix · CNA opentelemetry-exporter-otlp-proto-http (OpenTelemetry) Fixed in 1.45.0

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Product	Status	Plan or fix
Ansible Automation Orchestrator 2026	Affected	No fix yet: Fix deferred
Exploit Intelligence	Affected	No fix planned: Out of support scope
Lightspeed Core	Affected	No fix yet: Fix deferred
OpenShift Lightspeed	Affected	No fix yet: Fix deferred
Red Hat AI Inference Server	Affected	No fix yet: Fix deferred
Red Hat Ansible Automation Platform 2	Affected	No fix yet: Fix deferred
Red Hat Enterprise Linux AI (RHEL AI) 3	Affected	No fix yet: Fix deferred
Red Hat OpenShift AI (RHOAI)	Affected	No fix yet: Fix deferred
Red Hat Quay 3	Affected	No fix yet: Fix deferred
Red Hat Satellite 6	Affected	No fix yet: Fix deferred
Red Hat Update Infrastructure 4 for Cloud Providers	Affected	No fix planned: Out of support scope

Timeline

2026-10-18 Threatist record created from CVE-2026-112006
2026-10-18 Alias added: GHSA-6469-8p9h-mmvm
2026-10-18 Affected versions changed · Red Hat
2026-10-18 CVSS score added · Red Hat
2026-10-19 CISA SSVC decision points changed
2026-10-19 Priority changed: MEDIUM → LOW

References

Patch 1

https://github.com/open-telemetry/opentelemetry-python/commit/89cc68b9ea7e15969b4f042d63397bdc74a3d60e

Other 3

TI-2024-23957 OpenTelemetry Collector has a Denial of Service via Zip/Decompression Bomb sent over HTTP or gRPC CVSS 3.1HIGH 8.2
TI-2026-42706 OpenTelemetry JavaScript: Denial of service in `JaegerPropagator` via unhandled exception on a malformed header CVSS 3.1HIGH 7.5
TI-2026-33428 OpenTelemetry eBPF Instrumentation: Memcached payload length overflow can crash OBI CVSS 3.1HIGH 7.5
TI-2026-33427 OpenTelemetry eBPF Instrumentation: MongoDB parser panics on malformed wire messages CVSS 3.1HIGH 7.5
TI-2026-33420 OpenTelemetry eBPF Instrumentation: Postgres BIND parsing can panic on malformed payloads CVSS 3.1HIGH 7.5
TI-2026-32777 opentelemetry-js: Prometheus exporter process crash via malformed HTTP request CVSS 3.1HIGH 7.5

See all 62 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences