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CVE-2023-39951

21
FAUCET Score

CVE-2023-39951 is a data exposure vulnerability in OpenTelemetry Java Instrumentation prior to version 1.28.0, affecting applications using AWS SDK v2 with Amazon SES v1 API. When instrumenting SES POST requests, the email subject and message from the HTTP body are inadvertently included in the trace url.path field, exposing sensitive email content in telemetry backends. Rated Medium (CVSS 6.5), this vulnerability has a network attack vector, low attack complexity, and high confidentiality impact, with no integrity or availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.28.0CPE matchmatch criteria
cpe:2.3:a:linuxfoundation:opentelemetry_instrumentation_for_java:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.67%
Probability of exploitation in next 30 days
EPSS Percentile
48.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0067 is in the 59th percentile among its peer group of 21,977 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

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