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 arises from an unsynchronized map used in the OpenTracing bridge's bridgeSpan, which can cause concurrent access to trigger a runtime panic. This can lead to process termination and denial of service. The vulnerability is fixed in version 1.45.0.
CVSS v4.0
Score 5.9medium
Affected software
open-telemetry
opentelemetry-go
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 from 0.11.0 up to but not including 1.45.0 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 fatal runtime errors such as concurrent map read and write or concurrent map iteration and write, resulting in process crashes and denial of service. The issue is resolved in version 1.45.0.
Potential Impact
Exploitation of this vulnerability can cause the affected process to panic and terminate unexpectedly, resulting in denial of service. There is no indication of privilege escalation, data corruption, or information disclosure. The impact is limited to service availability.
Mitigation Recommendations
Upgrade to OpenTelemetry-Go version 1.45.0 or later, where this race condition has been fixed. No other mitigations are indicated.
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
Threat ID: 6a8cb9abacd9273b4928caf1
Added to database: 08/24/2026, 21:37:47 UTC
Last enriched: 09/10/2026, 21:03:20 UTC
Last updated: 10/08/2026, 18:48:45 UTC
Views: 80
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.