CVE-2026-116588
Severity not reportedDatadog dd-trace-py is the Datadog Python APM client.
Datadog dd-trace-py is the Datadog Python APM client. From 1.5.0 until 3.19.9 and 4.15.6, the default query-string obfuscation regular expression can exhibit excessive backtracking while synchronously processing attacker-controlled URL query strings for HTTP span metadata. A remote attacker can cause prolonged CPU consumption, request latency, and service unavailability in affected HTTP tracing integrations that include query strings in URL span tags. The vulnerable processing is enabled by default for those integrations. This issue is fixed in versions 3.19.9 and 4.15.6.
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/DataDog/dd-trace-py/commit/63ddc3cb07d8813ded7a8b3ab5b8d0f5470e4bfd security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/commit/83ea39845dd95bfb9b8e247c62b3d22fc5dce1ce security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/commit/a6d73607ea45ecd67152630f64b0945556972ed8 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/pull/20857 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/pull/20862 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/pull/20880 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/releases/tag/v3.19.9 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/releases/tag/v4.15.6 security-advisories@github.com
- https://github.com/DataDog/dd-trace-py/security/advisories/GHSA-3633-r77q-h3v3 security-advisories@github.com