SEPTEMBER 17, 2026
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Case File

CVE-2026-55701

MEDIUM · CVSS 6.9 EPSS 0.67% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-15 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The OpenTelemetry Collector's GitHub receiver prior to version 0.151.0 is vulnerable due to insufficient validation of required headers in incoming webhook requests, allowing unauthenticated senders to submit arbitrary payloads. This can lead to the injection of malicious CI/CD trace data into the observability pipeline, undermining the integrity of monitoring systems. Organizations using affected versions should prioritize upgrading to version 0.151.0 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Detected Signals
exploit

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-55701
Severity
MEDIUM
CVSS
6.9
EPSS
0.67%
GitHub

Original NVD Description

The OpenTelemetry Collector Contrib repository contains components for the OpenTelemetry Collector. Prior to 0.151.0, the githubreceiver validates the receiver/githubreceiver/config.go RequiredHeaders configuration at startup, but receiver/githubreceiver/trace_receiver.go handleReq() does not check those headers on incoming webhook requests. An unauthenticated sender can therefore bypass an operator's required_headers authentication control and submit arbitrary webhook payloads. When the Secret field is empty, github.ValidatePayload also skips HMAC validation, leaving the webhook endpoint without either configured authentication mechanism. Successful exploitation can inject fabricated CI/CD trace data into the observability pipeline. This issue is fixed in version 0.151.0.