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GHSA-vc29-vg52-6643
No affected components available
Impact
What kind of vulnerability is it? Who is impacted?
A vulnerability in OpenTelemetry.Api package 1.10.0 to 1.11.1 could cause a Denial of Service (DoS) when a tracestate and traceparent header is received. These versions are used in OpenTelemetry .NET Automatic Instrumentation 1.10.0-beta.1 and 1.10.0.
Even if an application does not explicitly use trace context propagation, receiving these headers can still trigger high CPU usage. This issue impacts any application accessible over the web or backend services that process HTTP requests containing a tracestate header. Application may experience excessive resource consumption, leading to increased latency, degraded performance, or downtime.
Patches
Has the problem been patched? What versions should users upgrade to?
This issue has been resolved in OpenTelemetry.Api 1.11.2 by reverting the change that introduced the problematic behavior in versions 1.10.0 to 1.11.1. OpenTelemetry .NET Automatic Instrumentation fixes it in 1.11.0 release.
Fixed version
| OpenTelemetry .NET Automatic Instrumentation | Status | |----|----| | <= 1.9.0 | ✅ Not affected | | 1.10.0-beta.1, 1.10.0 | ❌ Vulnerable | | 1.11.0 (Fixed)| ✅ Safe to use|
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
References
Are there any links users can visit to find out more?
The vulnerability can be exploited over the network without needing physical access. It is easy for an attacker to exploit this vulnerability. An attacker does not need any special privileges or access rights. No user interaction is needed for the attacker to exploit this vulnerability. The impact is confined to the system where the vulnerability exists. There is a high impact on the availability of the system.
Exploitation attempts have been detected. Elevated vigilance and prompt remediation are advised.
Probability that this vulnerability will be exploited in the wild within the next 30 days.
We did not find any exploit available. Neither in GitHub repositories nor in the Exploit-Database.
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