Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-54788— dd-trace-rs: Unbounded W3C tracestate parsing may lead to DoS

Quick assessment

Affected
DataDog dd-trace-rs
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

以下是对该漏洞描述的中文翻译： dd-trace-rs 为 Rust 应用提供 Datadog 应用程序性能监控。在版本 0.1.0 至 0.3.3 中， 在解析 W3C 请求头时，会将 Datadog 供应商条目中所有以分号分隔的键值对收集到 中，但并未对键值对的数量或条目大小设置限制。由于 tracecontext 提取功能默认开启，远程未认证的攻击者可以发送一个任意大的 条目，从而在每个请求中导致过高的 CPU 和内存消耗，进而造成受监控网络服务的拒绝服务（DoS）。该漏洞已在版本 0.3.3 中修复。

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 1

VendorProduct Version RangeStatus
DataDog dd-trace-rs >= 0.1.0, < 0.3.3 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-54788

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
dd-trace-rs: Unbounded W3C tracestate parsing may lead to DoS
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
不加限制或调节的资源分配
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
DataDog dd-trace-rs >= 0.1.0, < 0.3.3 -

II. Public POCs for CVE-2026-54788

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-54788

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-54788 (2)

Vendor Advisories for CVE-2026-54788 (1)

IV. Related Vulnerabilities

Same vendor: DataDog
Same weakness: CWE-770

V. Comments for CVE-2026-54788

No comments yet

Leave a comment