CVE-2026-44902: CWE-755: Improper Handling of Exceptional Conditions in open-telemetry opentelemetry-js
opentelemetry-js is the OpenTelemetry JavaScript Client. Prior to 0.217.0, a single malformed HTTP request crashes any Node.js process running the OpenTelemetry JS Prometheus exporter. The metrics endpoint (default 0.0.0.0:9464) has no error handling around URL parsing, so a request with an invalid URI causes an uncaught TypeError that terminates the process. This vulnerability is fixed in 0.217.0.
AI Analysis
Technical Summary
The vulnerability in opentelemetry-js (prior to version 0.217.0) involves improper handling of exceptional conditions (CWE-755) in the Prometheus exporter’s HTTP metrics endpoint. When the endpoint receives a malformed HTTP request with an invalid URI, the lack of error handling around URL parsing triggers an uncaught TypeError, which crashes the Node.js process hosting the exporter. This leads to a denial of service condition. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. The fix was introduced in version 0.217.0 of opentelemetry-js.
Potential Impact
The impact of this vulnerability is a denial of service (DoS) condition caused by a single malformed HTTP request to the Prometheus metrics endpoint. This results in the termination of the Node.js process running the OpenTelemetry JS Prometheus exporter, potentially disrupting telemetry data collection and monitoring. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade opentelemetry-js to version 0.217.0 or later, where this vulnerability is fixed. Since the vulnerability is resolved in this version, no additional mitigation steps are required. Patch status is confirmed fixed in version 0.217.0.
CVE-2026-44902: CWE-755: Improper Handling of Exceptional Conditions in open-telemetry opentelemetry-js
Description
opentelemetry-js is the OpenTelemetry JavaScript Client. Prior to 0.217.0, a single malformed HTTP request crashes any Node.js process running the OpenTelemetry JS Prometheus exporter. The metrics endpoint (default 0.0.0.0:9464) has no error handling around URL parsing, so a request with an invalid URI causes an uncaught TypeError that terminates the process. This vulnerability is fixed in 0.217.0.
CVSS v3.1
Score 7.5high
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in opentelemetry-js (prior to version 0.217.0) involves improper handling of exceptional conditions (CWE-755) in the Prometheus exporter’s HTTP metrics endpoint. When the endpoint receives a malformed HTTP request with an invalid URI, the lack of error handling around URL parsing triggers an uncaught TypeError, which crashes the Node.js process hosting the exporter. This leads to a denial of service condition. The vulnerability has a CVSS 3.1 base score of 7.5, indicating high severity. The fix was introduced in version 0.217.0 of opentelemetry-js.
Potential Impact
The impact of this vulnerability is a denial of service (DoS) condition caused by a single malformed HTTP request to the Prometheus metrics endpoint. This results in the termination of the Node.js process running the OpenTelemetry JS Prometheus exporter, potentially disrupting telemetry data collection and monitoring. There is no impact on confidentiality or integrity according to the CVSS vector. No known exploits are reported in the wild.
Mitigation Recommendations
Upgrade opentelemetry-js to version 0.217.0 or later, where this vulnerability is fixed. Since the vulnerability is resolved in this version, no additional mitigation steps are required. Patch status is confirmed fixed in version 0.217.0.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-05-07T21:50:33.547Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a170b58e29bf47b50c90707
Added to database: 5/27/2026, 3:18:48 PM
Last enriched: 5/27/2026, 3:48:58 PM
Last updated: 5/29/2026, 5:56:17 AM
Views: 6
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