CVE-2026-116589: Datadog dd-trace-py: IAST instrumentation can lead to application DOS
A flaw in dd-trace-py’s IAST instrumentation can cause the Python application process to terminate unexpectedly when processing certain attacker-controlled input. Only applications with IAST enabled are affected. IAST is disabled by default.
References
- github.com/DataDog/dd-trace-py/commit/69dc19853247434ceab83e0c1c4e279a2eb2a3f7
- github.com/DataDog/dd-trace-py/commit/ace972489b57dd020ff52b706bb548a354f2dd69
- github.com/DataDog/dd-trace-py/pull/20786
- github.com/DataDog/dd-trace-py/pull/20823
- github.com/DataDog/dd-trace-py/releases/tag/v4.15.5
- github.com/DataDog/dd-trace-py/security/advisories/GHSA-p3m5-h5v9-vqj6
- github.com/advisories/GHSA-p3m5-h5v9-vqj6
- nvd.nist.gov/vuln/detail/CVE-2026-116589
Code Behaviors & Features
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