OpenTelemetry.OpAmp.Client is the OpAMP client for OpenTelemetry .NET. Prior to 0.2.0-alpha.1, when receiving responses from the OpAMP server over HTTP, the OpAMP client allocates an unbounded buffer to read all bytes from the server, with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured OpAMP server is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned in the response. This vulnerability is fixed in 0.2.0-alpha.1.
Metrics
Affected Vendors & Products
References
History
Wed, 27 May 2026 16:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Opentelemetry opentelemetry.opamp.client
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| CPEs | cpe:2.3:a:opentelemetry:opentelemetry.opamp.client:*:*:*:*:*:.net:*:* | |
| Vendors & Products |
Opentelemetry opentelemetry.opamp.client
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Wed, 13 May 2026 20:15:00 +0000
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| Metrics |
ssvc
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Tue, 12 May 2026 23:45:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Opentelemetry
Opentelemetry opentelemetry-dotnet-contrib |
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| Vendors & Products |
Opentelemetry
Opentelemetry opentelemetry-dotnet-contrib |
Tue, 12 May 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
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| Description | OpenTelemetry.OpAmp.Client is the OpAMP client for OpenTelemetry .NET. Prior to 0.2.0-alpha.1, when receiving responses from the OpAMP server over HTTP, the OpAMP client allocates an unbounded buffer to read all bytes from the server, with no upper-bound on the number of bytes consumed. This could cause memory exhaustion in the consuming application if the configured OpAMP server is attacker-controlled (or a network attacker can MitM the connection) and an extremely large body is returned in the response. This vulnerability is fixed in 0.2.0-alpha.1. | |
| Title | OpAMP client reads unbounded HTTP response bodies | |
| Weaknesses | CWE-789 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-05-12T18:01:41.812Z
Updated: 2026-05-13T19:32:28.404Z
Reserved: 2026-04-26T13:26:14.515Z
Link: CVE-2026-42348
Updated: 2026-05-13T19:32:23.948Z
Status : Analyzed
Published: 2026-05-12T18:17:24.700
Modified: 2026-05-27T15:57:13.617
Link: CVE-2026-42348
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