CVE-2026-41484 — OpenTelemetry.Exporter.OneCollector is a .NET exporter that
CVE-2026-41484 — OpenTelemetry.Exporter.OneCollector is a .NET exporter that sends telemetry to a OneCollector back-end over HTTP. In versions 1.15.0 and earlier, when a request to the configured back-end or collector results in an unsuccessful HTTP 4xx or 5xx response, the HttpJsonPostTransport cla
What This Means For You
- If your environment is affected by CWE-770, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-41484 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
Unbounded Heap Allocation via Large HTTP Response - CVE-2026-41484
title: Unbounded Heap Allocation via Large HTTP Response - CVE-2026-41484
id: scw-2026-05-06-ai-1
status: experimental
level: high
description: |
Detects responses from a web server with HTTP status codes 4xx or 5xx. This is indicative of the vulnerability in OpenTelemetry.Exporter.OneCollector (CVE-2026-41484) where large response bodies from such errors can lead to unbounded heap allocation and potential denial of service. This rule specifically targets the error responses that trigger the vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-05-06
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-41484/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
sc-status|startswith:
- '4'
- '5'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-41484 | vulnerability | CVE-2026-41484 |
| CWE-770 | weakness | CWE-770 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 07, 2026 at 01:16 UTC |
This content was curated and summarized by Shimi's Cyber World for informational purposes. It is not copied or republished in full. All intellectual property rights remain with the original author and source.
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