OpenTelemetry opentelemetry-exporter-otlp-proto-http up to 1.44.x OTEL_EXPORTER_OTLP_CERTIFICATE certificate validation

Summaryinfo

A vulnerability marked as problematic has been reported in OpenTelemetry opentelemetry-exporter-otlp-proto-http up to 1.44.x. Affected by this issue is some unknown functionality. Performing a manipulation of the argument OTEL_EXPORTER_OTLP_CERTIFICATE results in certificate validation. This vulnerability is cataloged as CVE-2026-112006. It is possible to initiate the attack remotely. There is no exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in OpenTelemetry opentelemetry-exporter-otlp-proto-http up to 1.44.x. It has been classified as problematic. This affects an unknown code. The manipulation of the argument OTEL_EXPORTER_OTLP_CERTIFICATE with an unknown input leads to a certificate validation vulnerability. CWE is classifying the issue as CWE-295. The product does not validate, or incorrectly validates, a certificate. This is going to have an impact on integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2026-112006 since 10/18/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1587.003 according to MITRE ATT&CK.

Upgrading to version 1.45.0 eliminates this vulnerability.

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Productinfo

Vendor

• OpenTelemetry

Name

• opentelemetry-exporter-otlp-proto-http

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.12
• 1.13
• 1.14
• 1.15
• 1.16
• 1.17
• 1.18
• 1.19
• 1.20
• 1.21
• 1.22
• 1.23
• 1.24
• 1.25
• 1.26
• 1.27
• 1.28
• 1.29
• 1.30
• 1.31
• 1.32
• 1.33
• 1.34
• 1.35
• 1.36
• 1.37
• 1.38
• 1.39
• 1.40
• 1.41
• 1.42
• 1.43
• 1.44

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