CVE-2026-116589 Datadog dd-trace-py - Denial of Service

Datadog dd-trace-py 3.13.0 to <4.15.5 contains a denial of service caused by improper handling of internal errors in IAST string-processing instrumentation with old-style % string formatting, letting attackers terminate the Python process, exploit requires IAST enabled and attacker-controlled input in formatting.

CVSS base score 8.2 /10
High
CISA KEV
Not listed
Public exploit
None known
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Published
26 October 2026
Updated
27 October 2026
Weakness
CWE-248

Vendor fix

Upgrade to version 4.15.5 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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