Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-45404— OpenTelemetry-Go: Unsynchronized baggage map can panic under concurrent access

Quick assessment

Affected
open-telemetry opentelemetry-go
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

open-telemetry opentelemetry-go是open-telemetry组织的一个提供遥测数据采集与处理能力的可观测性库。 open-telemetry opentelemetry-go 0.11.0版本至1.44.0版本存在竞争条件问题漏洞，该漏洞源于OpenTracing桥的bridgeSpan中extraBaggageItems映射未同步，在并发调用SetBaggageItem和correlation.MapFromContext时可能触发致命运行时错误，导致进程终止和拒绝服务。

CVSS 5.9 · Medium EPSS 0.14% · P3

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
open-telemetry opentelemetry-go >= 0.11.0, < 1.45.0 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-45404

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
OpenTelemetry-Go: Unsynchronized baggage map can panic under concurrent access
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
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
Source: CVE Program / CVE List V5
Vulnerability Type
使用共享资源的并发执行不恰当同步问题(竞争条件)
Source: CVE Program / CVE List V5
Vulnerability Title
open-telemetry opentelemetry-go 竞争条件问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
open-telemetry opentelemetry-go是open-telemetry组织的一个提供遥测数据采集与处理能力的可观测性库。 open-telemetry opentelemetry-go 0.11.0版本至1.44.0版本存在竞争条件问题漏洞，该漏洞源于OpenTracing桥的bridgeSpan中extraBaggageItems映射未同步，在并发调用SetBaggageItem和correlation.MapFromContext时可能触发致命运行时错误，导致进程终止和拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
open-telemetry opentelemetry-go >= 0.11.0, < 1.45.0 -

II. Public POCs for CVE-2026-45404

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-45404

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-45404 (1)

Vendor Advisories for CVE-2026-45404 (1)

IV. Related Vulnerabilities

Same product: opentelemetry-go
Same vendor: open-telemetry
Same weakness: CWE-362

V. Comments for CVE-2026-45404

No comments yet

Leave a comment