Datadog dd-trace-py: ReDoS in URL query string obfuscation

影響: pip:ddtrace >= 1.5.0, < 3.19.9 → 3.19.9, pip:ddtrace >= 4.0.0, < 4.15.6 → 4.15.6

A regular expression used to obfuscate URL query strings can consume excessive CPU when processing certain attacker-controlled input. This can stall request processing and cause denial of service in applications using affected HTTP tracing integrations. Details The default query-string obfuscation pattern can exhibit excessive backtracking. The pattern is applied synchronously when recording HTTP URL metadata, allowing query-string processing to occupy application resources for an extended peri…

Read on GitHub Advisory Database

On 10/28/2026, 12:37 AM, GitHub Advisory Database published "Datadog dd-trace-py: ReDoS in URL query string obfuscation" (type: Advisory). Severity is "High" (high). Related technologies: Python, Datadog. CVE: CVE-2026-116588.