CVE-2026-116589

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.

CVSS

No CVSS.

References

Link	Resource
https://github.com/DataDog/dd-trace-py/commit/69dc19853247434ceab83e0c1c4e279a2eb2a3f7
https://github.com/DataDog/dd-trace-py/commit/ace972489b57dd020ff52b706bb548a354f2dd69
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

Configurations

No configuration.

History

26 Oct 2026, 22:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-26 22:16

Updated : 2026-10-31 02:17

NVD link : CVE-2026-116589

Mitre link : CVE-2026-116589

CVE.ORG link : CVE-2026-116589

JSON object : View

Products Affected

No product.

CWE

CWE-248

Uncaught Exception

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