CVE-2026-45404: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in open-telemetry opentelemetry-go
A race condition vulnerability exists in the OpenTelemetry-Go library versions 0.11.0 through 1.44.0. The issue involves an unsynchronized map in the OpenTracing bridge's bridgeSpan, which can cause concurrent access to trigger a fatal runtime error and crash the process, resulting in denial of service. This vulnerability is fixed in version 1.45.0.
AI Analysis
Technical Summary
OpenTelemetry-Go versions 0.11.0 through 1.44.0 contain a race condition in the OpenTracing bridge's bridgeSpan implementation. Specifically, the extraBaggageItems map is accessed concurrently without synchronization during SetBaggageItem and correlation.MapFromContext calls. Since Go maps are not safe for concurrent read/write operations, this can cause runtime panics such as concurrent map read and map write or concurrent map iteration and map write, terminating the process and causing denial of service. The issue is resolved in version 1.45.0.
Potential Impact
Exploitation of this vulnerability can cause the affected application to crash due to fatal runtime errors triggered by concurrent unsynchronized map access. This results in denial of service conditions, potentially impacting availability of services relying on the OpenTelemetry-Go library.
Mitigation Recommendations
This vulnerability is fixed in OpenTelemetry-Go version 1.45.0. Users should upgrade to version 1.45.0 or later to remediate this issue. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory indicating the fix in 1.45.0.
CVE-2026-45404: CWE-362: Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') in open-telemetry opentelemetry-go
Description
A race condition vulnerability exists in the OpenTelemetry-Go library versions 0.11.0 through 1.44.0. The issue involves an unsynchronized map in the OpenTracing bridge's bridgeSpan, which can cause concurrent access to trigger a fatal runtime error and crash the process, resulting in denial of service. This vulnerability is fixed in version 1.45.0.
CVSS v4.0
Score 5.9medium
Affected software
pkg:golang/github.com/open-telemetry/opentelemetry-goRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
OpenTelemetry-Go versions 0.11.0 through 1.44.0 contain a race condition in the OpenTracing bridge's bridgeSpan implementation. Specifically, the extraBaggageItems map is accessed concurrently without synchronization during SetBaggageItem and correlation.MapFromContext calls. Since Go maps are not safe for concurrent read/write operations, this can cause runtime panics such as concurrent map read and map write or concurrent map iteration and map write, terminating the process and causing denial of service. The issue is resolved in version 1.45.0.
Potential Impact
Exploitation of this vulnerability can cause the affected application to crash due to fatal runtime errors triggered by concurrent unsynchronized map access. This results in denial of service conditions, potentially impacting availability of services relying on the OpenTelemetry-Go library.
Mitigation Recommendations
This vulnerability is fixed in OpenTelemetry-Go version 1.45.0. Users should upgrade to version 1.45.0 or later to remediate this issue. No other official remediation or temporary fixes are documented. Patch status is confirmed by the vendor advisory indicating the fix in 1.45.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-12T01:48:40.451Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a8cb9abacd9273b4928caf1
Added to database: 08/24/2026, 21:37:47 UTC
Last enriched: 08/24/2026, 21:52:07 UTC
Last updated: 08/24/2026, 22:13:08 UTC
Views: 5
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