Detections
Analytics

Echo: go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc: security update to 0.21.0

medium Tenable Cloud Security Plugin ID 460545

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - OpenTelemetry-Go is the Go implementation of OpenTelemetry. Prior to version 0.21.0, the
 exporters/otlp/otlplog/otlploggrpc package loads OTEL_EXPORTER_OTLP_LOGS_CERTIFICATE,
 OTEL_EXPORTER_OTLP_CERTIFICATE, and related client certificate environment variables through loadEnvTLS
 into cfg.tlsCfg, but newGRPCDialOptions does not apply cfg.tlsCfg when creating gRPC transport
 credentials. The environment-only TLS path instead uses credentials.NewTLS with system roots and no
 configured client certificate, bypassing intended private CA pinning and mutual TLS unless the application
 also supplies WithTLSCredentials. A network attacker able to intercept or spoof the collector connection
 with a system-trusted certificate can read or alter log telemetry. This issue is fixed in version 0.21.0.
 (CVE-2026-81871)

Solution

Update the go.opentelemetry.io/otel/exporters/otlp/otlplog/otlploggrpc library and its related packages to version 0.21.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-81871

Plugin Details

Severity: Medium

ID: 460545

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/5/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 8.12

CVSS v2

Risk Factor: Medium

Base Score: 4

Temporal Score: 3

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:P/A:N

CVSS Score Source: CVE-2026-81871

CVSS v3

Risk Factor: Medium

Base Score: 4.8

Temporal Score: 4.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

CVSS v4

Risk Factor: Medium

Base Score: 6.3

Threat Score: 1.7

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/28/2026

Vulnerability Publication Date: 9/16/2026

Reference Information

CVE: CVE-2026-81871