Detections
Analytics

SCA: security update for OpenTelemetry.Exporter.OpenTelemetryProtocol (GHSA-4625-4j76-fww9)

high Tenable Cloud Security Plugin ID 441028

Description

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

 - OpenTelemetry.Exporter.OpenTelemetryProtocol is the OTLP (OpenTelemetry Protocol) exporter implementation.
 From 1.8.0 to 1.15.2, the OTLP disk retry feature in OpenTelemetry.Exporter.OpenTelemetryProtocol silently
 fell back to Path.GetTempPath() when OTEL_DOTNET_EXPERIMENTAL_OTLP_RETRY=disk was set but
 OTEL_DOTNET_EXPERIMENTAL_OTLP_DISK_RETRY_DIRECTORY_PATH was not configured. The exporter stored and loaded
 *.blob files under fixed, signal-named subdirectories (traces, metrics, logs) beneath that shared
 temporary root path. On multi-user systems where the temporary directory is accessible to other local
 accounts, this allows an attacker to write crafted *.blob files, read *.blob files written by the
 application between export failures, or deposit numerous or oversized blob files, degrading retry-loop
 performance or consuming disk space. This vulnerability is fixed in 1.15.3. (CVE-2026-42191)

Solution

Update the OpenTelemetry.Exporter.OpenTelemetryProtocol library and its related packages to version 1.15.3 or later.

See Also

https://github.com/advisories/GHSA-4625-4j76-fww9

Plugin Details

Severity: High

ID: 441028

Version: Revision 1.7

Type: Local

Family: SCA Checks

Published: 4/30/2026

Updated: 7/2/2026

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 57.92

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2026-42191

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/30/2026

Vulnerability Publication Date: 4/30/2026

Reference Information

CVE: CVE-2026-42191

cwe: CWE-379