dd-trace-go: Improper parsing of W3C baggage headers 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
Datadog dd-trace-go is a Go client library for Datadog application performance monitoring, profiling, and security monitoring. Prior to 2.8.1, Datadog tracing libraries that implement W3C baggage propagation parse incoming baggage HTTP headers without enforcing DD_TRACE_BAGGAGE_MAX_ITEMS or DD_TRACE_BAGGAGE_MAX_BYTES limits on the extract path. A remote, unauthenticated attacker can send a request whose baggage header contains an arbitrarily large number of comma-separated key-value pairs or a single very large value, causing unbounded CPU and memory consumption and enabling a remote denial of service against HTTP services with baggage propagation enabled. This issue is fixed in version 2.8.1.
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-go | before 2.8.1 | 2.8.1 | Patch available | CNA |
| — | github.com/DataDog/dd-trace-go (Go) | up to 1.24.1 | — | No fix listed | GHSA-74j5-xf3v-crq8 |
| — | github.com/DataDog/dd-trace-go/v2 (Go) | before 2.8.1 | 2.8.1 | Patch available | GHSA-74j5-xf3v-crq8 |
- dd-trace-go VendorDataDog Affected before 2.8.1 Fixed in 2.8.1 Patch available CNA
- github.com/DataDog/dd-trace-go (Go) Vendor— Affected up to 1.24.1 Fixed in — No fix listed GHSA-74j5-xf3v-crq8
- github.com/DataDog/dd-trace-go/v2 (Go) Vendor— Affected before 2.8.1 Fixed in 2.8.1 Patch available GHSA-74j5-xf3v-crq8
Remediation
- Fix · CNA dd-trace-go (DataDog) Fixed in 2.8.1
- Fix · GHSA-74j5-xf3v-crq8 github.com/DataDog/dd-trace-go/v2 (Go) Fixed in 2.8.1 Advisory →
Vendor assessments
Red Hat
Red Hat rating: Important. Red Hat's page for this CVE →
Not affected: 2 products
- Red Hat Advanced Cluster Management for Kubernetes 2
- Red Hat OpenShift Container Platform 4
Timeline
- 2026-10-02 Threatist record created from CVE-2026-50274
- 2026-10-03 Alias added: GHSA-74j5-xf3v-crq8
References
Other 5
- https://github.com/DataDog/dd-trace-go/security/advisories/GHSA-74j5-xf3v-crq8
- https://github.com/DataDog/dd-trace-go/pull/4720
- https://github.com/DataDog/dd-trace-go/commit/192712ba0291b2e89166259111ebb5e90c8f52df
- https://github.com/DataDog/dd-trace-go/releases/tag/v2.8.1
- https://github.com/DataDog/dd-trace-go
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-2026-50274 · CVE Program
- CVE-2026-50274 · NVD
- FIRST EPSS
- GHSA-74j5-xf3v-crq8 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-50274 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences