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Vulnerability record · CVE-2023-39951 · published 8 August 2023

CVE-2023-39951: Linuxfoundation opentelemetry instrumentation for java information exposure vulnerability

Linuxfoundation · Opentelemetry Instrumentation For Java

OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. OpenTelemetry Java Instrumentation prior to version 1.28.0 contains an issue related to the instrumentation of Java applications using the AWS SDK v2 with Amazon Simple Email Service (SES) v1 API. When SES POST requests are instrumented, the query parameters of the request are inserted into the trace `url.path` field. This behavior leads to the http body, containing the email subject and message, to be present in the trace request url metadata. Any user using a version before 1.28.0 of OpenTelemetry Java Instrumentation to instrument AWS SDK v2 call to SES’s v1 SendEmail API is affected. The e-mail content sent to SES may end up in telemetry backend. This exposes the e-mail content to unintended audiences. The issue can be mitigated by updating OpenTelemetry Java Instrumentation to version 1.28.0 or later.

6.5 CVSS 3.1 Medium EPSS 0.84% · top 43.9% CWE-200 · Information exposure
6.5CVSS 3.1 base score
0.84%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
6References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java. OpenTelemetry Java Instrumentation prior to version 1.28.0 contains an issue related to the instrumentation of Java applications using the AWS SDK v2 with Amazon Simple Email Service (SES) v1 API. When SES POST requests are instrumented, the query parameters of the request are inserted into the trace `url.path` field. This behavior leads to the http body, containing the email subject and message, to be present in the trace request url metadata. Any user using a version before 1.28.0 of OpenTelemetry Java Instrumentation to instrument AWS SDK v2 call to SES’s v1 SendEmail API is affected. The e-mail content sent to SES may end up in telemetry backend. This exposes the e-mail content to unintended audiences. The issue can be mitigated by updating OpenTelemetry Java Instrumentation to version 1.28.0 or later.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/8956 ExploitIssue TrackingVendor Advisory
https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/8931 PatchVendor Advisory
https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-hghr-r469-gfq6 Vendor Advisory
https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/8956 ExploitIssue TrackingVendor Advisory
https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/8931 PatchVendor Advisory
https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-hghr-r469-gfq6 Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2023-39951), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.