DataDog dd-trace-rs up to 0.3.2 Trace Context Extraction tracecontext.rs resource consumption

Summaryinfo

A vulnerability was found in DataDog dd-trace-rs up to 0.3.2. It has been classified as problematic. The impacted element is an unknown function of the file datadog-opentelemetry/src/propagation/tracecontext.rs of the component Trace Context Extraction. The manipulation leads to resource consumption. This vulnerability is documented as CVE-2026-54788. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in DataDog dd-trace-rs up to 0.3.2. This issue affects an unknown code block of the file datadog-opentelemetry/src/propagation/tracecontext.rs of the component Trace Context Extraction. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability. The summary by CVE is:

dd-trace-rs provides Datadog application performance monitoring for Rust. From 0.1.0 until 0.3.3, datadog-opentelemetry/src/propagation/tracecontext.rs parses the W3C tracestate header and collects every semicolon-separated key and value pair in the Datadog dd=... vendor entry into a HashMap without enforcing a pair count or entry size limit. Because tracecontext extraction is enabled by default, a remote unauthenticated attacker can send an arbitrarily large dd=... entry and force excessive CPU and memory consumption for each request, causing denial of service in an instrumented network service. This vulnerability is fixed in 0.3.3.

The advisory is shared at github.com. The identification of this vulnerability is CVE-2026-54788 since 06/16/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1499 for this issue.

Upgrading to version 0.3.3 eliminates this vulnerability.

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Productinfo

Type

• Network Management Software

Vendor

• DataDog

Name

• dd-trace-rs

Version

• 0.3.0
• 0.3.1
• 0.3.2

Website

• Product: https://github.com/DataDog/dd-trace-rs/

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CPE 2.2info

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