OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 0.11.0 through 1.44.0, the OpenTracing bridge's bridgeSpan contains an unsynchronized extraBaggageItems map which can cause a panic. Because Go maps are not safe for concurrent read/write access, concurrent SetBaggageItem and correlation.MapFromContext calls on the same hooked bridgeSpan can trigger a fatal runtime error—such as concurrent map read and map write or concurrent map iteration and map write—terminating the process and causing denial of service. This issue is fixed in version 1.45.0.
History

Tue, 01 Sep 2026 12:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-820
References
Metrics threat_severity

None

cvssV3_1

{'score': 6.2, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H'}

threat_severity

Moderate


Thu, 27 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 24 Aug 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Opentelemetry
Opentelemetry opentelemetry-go
Vendors & Products Opentelemetry
Opentelemetry opentelemetry-go

Mon, 24 Aug 2026 21:30:00 +0000

Type Values Removed Values Added
Description OpenTelemetry-Go is the Go implementation of OpenTelemetry. From version 0.11.0 through 1.44.0, the OpenTracing bridge's bridgeSpan contains an unsynchronized extraBaggageItems map which can cause a panic. Because Go maps are not safe for concurrent read/write access, concurrent SetBaggageItem and correlation.MapFromContext calls on the same hooked bridgeSpan can trigger a fatal runtime error—such as concurrent map read and map write or concurrent map iteration and map write—terminating the process and causing denial of service. This issue is fixed in version 1.45.0.
Title OpenTelemetry-Go: Unsynchronized baggage map can panic under concurrent access
Weaknesses CWE-362
CWE-667
References
Metrics cvssV4_0

{'score': 5.9, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-08-24T21:19:00.617Z

Updated: 2026-08-27T14:18:58.878Z

Reserved: 2026-05-12T01:48:40.451Z

Link: CVE-2026-45404

cve-icon Vulnrichment

Updated: 2026-08-27T14:18:50.415Z

cve-icon NVD

Status : Deferred

Published: 2026-08-24T22:16:53.020

Modified: 2026-09-09T21:06:39.057

Link: CVE-2026-45404

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-08-24T21:19:00Z

Links: CVE-2026-45404 - Bugzilla