Detections
Analytics

Echo: go.opentelemetry.io/otel/sdk/log: security update to 0.21.0

medium Tenable Self-Hosted Container Security Plugin ID 461331

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
 go.opentelemetry.io/otel/sdk/log BatchingProcessor can enter a tight CPU loop when attacker-driven log
 emission fills its asynchronous export buffer while the exporter is backpressured. NewBatchingProcessor
 wraps the exporter with newBufferExporter(exporter, 1), and the poll loop calls queue.TryDequeue and
 bufferExporter.EnqueueExport before immediately signaling pollTrigger whenever the queue remains at or
 above batchSize. Because a failed nonblocking EnqueueExport leaves the queue length unchanged, the
 processor repeatedly retries without waiting for its ticker, exhausting CPU and degrading or denying
 service in the embedding process. This issue is fixed in version 0.21.0. (CVE-2026-81872)

Solution

Update the go.opentelemetry.io/otel/sdk/log library and its related packages to version 0.21.0 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-81872

Plugin Details

Severity: Medium

ID: 461331

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/3/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 1.2

Percentile: 0.01

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-81872

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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:N/VI:N/VA:L/SC:N/SI:N/SA:N

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2026

Vulnerability Publication Date: 9/16/2026

Reference Information

CVE: CVE-2026-81872