Improper Handling of Unicode Encoding Affecting github.com/open-telemetry/opentelemetry-go/sdk/trace package, versions >=1.10.0 <1.33.0
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applications- Snyk IDSNYK-GOLANG-GITHUBCOMOPENTELEMETRYOPENTELEMETRYGOSDKTRACE-19883618
- published17 Sept 2026
- disclosed16 Sept 2026
- creditRobert Pająk
Introduced: 16 Sep 2026
NewCVE-2026-81869 (opens in a new tab)How to fix?
Upgrade github.com/open-telemetry/opentelemetry-go/sdk/trace to version 1.33.0 or higher.
Overview
Affected versions of this package are vulnerable to Improper Handling of Unicode Encoding in the attribute truncation process. An attacker can cause the retention of attribute values exceeding the configured length limit by supplying specially crafted Unicode replacement characters, leading to increased memory consumption and reduced effectiveness of denial-of-service protections.