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CVE details

CVE-2026-112006

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.

Score
8.3 high
Published
2026-10-18
Links
NVD · cve.org · Report wrong data

Matched ports (1)

PortPackageVersionStatusMaintainer
devel/py-opentelemetry-exporter-otlp-proto-httppy312-opentelemetry-exporter-otlp-proto-http1.44.0_1unaddressedsunpoet@FreeBSD.org

Template for a VuXML entry

Range taken from the CVE record, check it before committing. make newentry in security/vuxml creates the vid.

  <vuln vid="FIXME (make newentry)">
    <topic>FIXME -- FIXME</topic>
    <affects>
      <package>
	<name>py312-opentelemetry-exporter-otlp-proto-http</name>
	<range><lt>1.45.0</lt></range>
      </package>
    </affects>
    <description>
      <body xmlns="http://www.w3.org/1999/xhtml">
	<p>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.</p>
      </body>
    </description>
    <references>
      <cvename>CVE-2026-112006</cvename>
      <url>https://nvd.nist.gov/vuln/detail/CVE-2026-112006</url>
    </references>
    <dates>
      <discovery>2026-10-18</discovery>
      <entry>2026-10-27</entry>
    </dates>
  </vuln>