What’s Vulnerable › Vulnerabilities

CVE-2026-104872: Multiple @opentelemetry/instrumentation-* packages expose database username via unconditional db.user span attribute

• Severity: medium (CVSS 5.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-02 · updated 2026-10-06
• Weakness: CWE-532

Description

OpenTelemetry JavaScript Contrib provides instrumentation libraries for collecting telemetry from JavaScript applications. Prior to versions 0.66.0 of @opentelemetry/instrumentation-cassandra-driver, 0.65.0 of @opentelemetry/instrumentation-knex, 0.67.0 of @opentelemetry/instrumentation-mongoose, @opentelemetry/instrumentation-mysql, and @opentelemetry/instrumentation-mysql2, 0.46.0 of @opentelemetry/instrumentation-oracledb, 0.73.0 of @opentelemetry/instrumentation-pg, and 0.40.0 of @opentelemetry/instrumentation-tedious, the packages add the database connection username to every instrumented database operation as the db.user span attribute. The attribute is emitted by default and is not controlled by enhancedDatabaseReporting or another opt-in setting. Configured observability backends therefore receive database account names that may expose service topology, role or environment information, and account naming patterns. This issue is fixed in versions 0.66.0, 0.65.0, 0.67.0, 0.46.0, 0.73.0, and 0.40.0 of the respective packages.

Affected products

• @opentelemetry instrumentation-cassandra-driver: before 0.66.0
• @opentelemetry instrumentation-knex: before 0.65.0
• @opentelemetry instrumentation-mongoose: before 0.67.0
• @opentelemetry instrumentation-mysql: before 0.67.0
• @opentelemetry instrumentation-mysql2: before 0.67.0
• @opentelemetry instrumentation-oracledb: before 0.46.0
• @opentelemetry instrumentation-pg: before 0.73.0
• @opentelemetry instrumentation-tedious: before 0.40.0
• open-telemetry opentelemetry-js-contrib: before 27e172a9e0d549559056ccd58f27d13467454156

References

• https://github.com/open-telemetry/opentelemetry-js-contrib/commit/27e172a9e0d549559056ccd58f27d13467454156
• https://github.com/open-telemetry/opentelemetry-js-contrib/commit/5b7dd0e102e940d653e04b08b5a1b721a8271037
• https://github.com/open-telemetry/opentelemetry-js-contrib/pull/3585
• https://github.com/open-telemetry/opentelemetry-js-contrib/security/advisories/GHSA-qqmp-wf37-98f9

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