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CVE-2023-39951

Instrumentation for AWS SDK v2 captures email content when using Amazon Simple Email Service (SES) v1 API, exposing that content to the telemetry backend

MEDIUM
6.5
CVSS Score
Published: August 8, 2023 at 09:02 PM UTC
Updated: June 17, 2026 at 06:13 AM UTC
2 products affected across 2 vendorsOpentelemetry Instrumentation for JavaOpentelemetry Instrumentation for Java

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.8%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Opentelemetry Instrumentation for Java· Linuxfoundation
95%
v < 1.28.0
Affected range stops below 1.28.0, so it looks safe — our inference, not a vendor statement
Opentelemetry Instrumentation for Java· Opentelemetry
60%
v < 1.28.0
Affected range stops below 1.28.0, so it looks safe — our inference, not a vendor statement

References (3)

x_refsource_MISCExploitIssue TrackingVendor Advisory
Source: [email protected]
https://github.com/open-telemetry/opentelemetry-java-instrumentation/issues/8956
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://github.com/open-telemetry/opentelemetry-java-instrumentation/pull/8931
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://github.com/open-telemetry/opentelemetry-java-instrumentation/security/advisories/GHSA-hghr-r469-gfq6

SSVC — Action Prioritization

SSVCPoCNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMGitHub_M
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-200NVD-CWE-noinfo

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