dd-trace-rs: Unbounded W3C tracestate parsing may lead to DoS
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-770.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| DataDog | dd-trace-rs | 0.1.0 to before 0.3.3 | 0.3.3 | Patch available | CNA |
| — | datadog-opentelemetry (crates.io) | 0.1.0 to before 0.3.3 | 0.3.3 | Patch available | GHSA-gpwf-4h98-v82q |
- dd-trace-rs VendorDataDog Affected 0.1.0 to before 0.3.3 Fixed in 0.3.3 Patch available CNA
- datadog-opentelemetry (crates.io) Vendor— Affected 0.1.0 to before 0.3.3 Fixed in 0.3.3 Patch available GHSA-gpwf-4h98-v82q
Remediation
- Fix · CNA dd-trace-rs (DataDog) Fixed in 0.3.3
- Fix · GHSA-gpwf-4h98-v82q datadog-opentelemetry (crates.io) Fixed in 0.3.3 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2026-54788
- 2026-10-03 Alias added: GHSA-gpwf-4h98-v82q
References
Other 5
- https://github.com/DataDog/dd-trace-rs/security/advisories/GHSA-gpwf-4h98-v82q
- https://github.com/DataDog/dd-trace-rs/pull/218
- https://github.com/DataDog/dd-trace-rs/commit/77c5d185c71d0ea8103da0e6cf4cd50677ffacd2
- https://github.com/DataDog/dd-trace-rs/releases/tag/datadog-opentelemetry-v0.3.3
- https://github.com/DataDog/dd-trace-rs
More DataDog vulnerabilities
- TI-2026-32833 GuardDog: Blind GitHub URL rewrite in remote project scanning causes SSRF and `GH_TOKEN` exfiltration CVSS 3.1HIGH 8.2
- TI-2022-07587 GuardDog vulnerable to arbitrary file write when scanning a specially-crafted remote PyPI package CVSS 3.1MEDIUM 6.5
- TI-2026-26107 dd-trace-java: Unsafe deserialization in RMI instrumentation may lead to remote code execution CVSS 4.0CRITICAL 9.3
- TI-2026-81528 ReDoS in dd-trace URL query string obfuscation CVSS 4.0HIGH 8.7
- TI-2026-80927 ReDoS in Datadog dd-trace-py URL query string obfuscation CVSS 4.0HIGH 8.7
- TI-2023-20052 import-in-the-middle allows unsanitized user controlled input in module generation CVSS 3.1CRITICAL 9.8
Sources
- CVE-2026-54788 · CVE Program
- CVE-2026-54788 · NVD
- FIRST EPSS
- GHSA-gpwf-4h98-v82q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences