CVE-2026-45404CWE-362CWE-667

CVE-2026-45404

published August 25, 2026

CVSS
5.9
EPSS
0%
Percentile
3.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
5.9 · NONE
CVSS v4.0
5.9 · 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
EPSS
0.00131 · 3.0th percentile
Weaknesses
CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition'); CWE-667 · Improper Locking
Published
2026-08-25T02:16Z
References (5)
EPSS history
Timeline
  • 26 AUG 08:07Z
    EPSS moved — → 0%
    epss
  • 24 AUG 21:19Z
    OpenTelemetry-Go: Unsynchronized baggage map can panic under concurrent access
    cvelistv5