Medium severity · published Aug 8, 2023
CVE-2023-39951
OpenTelemetry Java Instrumentation provides OpenTelemetry auto-instrumentation and instrumentation libraries for Java
6.5
CVSS
0.8%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.8% · higher than 58% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
Affected product
OI
Opentelemetry Instrumentation For Java
Linuxfoundation
More from Opentelemetry Instrumentation For Java
9.8
CVE-2026-33701
OpenTelemetry: Unsafe Deserialization in RMI Instrumentation may Lead to Remote Code Execution
7.5
CVE-2026-54712
OpenTelemetry Javaagent RMI context propagation allows resource exhaustion
6.5
CVE-2026-54704
OpenTelemetry Java Instrumentation: JDBC Auto-Instrumentation Logging Clear-Text Passwords