CVE-2026-116693 Datadog dd-trace - Denial of Service

Datadog dd-trace for Node.js 2.0.0 to 5.131.1 and 6.20.1 contains a denial of service caused by excessive backtracking in DD_TRACE_OBFUSCATION_QUERY_STRING_REGEXP on attacker-controlled URL query strings, letting attackers stall request processing, exploit requires crafted HTTP requests.

CVSS base score 8.7 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Not required
EPSS
0.45% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/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
27 October 2026
Updated
29 October 2026
Weakness
CWE-1333

Vendor fix

Upgrade to versions 5.131.1 or 6.20.1 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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