Vulnerability Description
Datadog dd-trace-py is the Datadog Python APM client. From 3.13.0 until 4.15.5, the IAST string-processing instrumentation does not properly handle certain internal errors while old-style % string formatting processes attacker-controlled input. An unhandled error can terminate the Python process and interrupt the work it is handling. Exploitation requires IAST to be enabled, which is not the default, and application code to apply the affected formatting operation to attacker-controlled input. This issue is fixed in version 4.15.5.
Related Weaknesses (CWE)
References
- https://github.com/DataDog/dd-trace-py/commit/69dc19853247434ceab83e0c1c4e279a2e
- https://github.com/DataDog/dd-trace-py/commit/ace972489b57dd020ff52b706bb548a354
- https://github.com/DataDog/dd-trace-py/pull/20786
- https://github.com/DataDog/dd-trace-py/pull/20823
- https://github.com/DataDog/dd-trace-py/releases/tag/v4.15.5
- https://github.com/DataDog/dd-trace-py/security/advisories/GHSA-p3m5-h5v9-vqj6
FAQ
What is CVE-2026-116589?
CVE-2026-116589 is a documented vulnerability. Datadog dd-trace-py is the Datadog Python APM client. From 3.13.0 until 4.15.5, the IAST string-processing instrumentation does not properly handle certain internal errors while old-style % string for...
How severe is CVE-2026-116589?
CVSS scoring is not yet available for CVE-2026-116589. Check NVD for updates.
Is there a patch for CVE-2026-116589?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.