CVE-2026-50274
dd-trace-go: Improper parsing of W3C baggage headers may lead to DoS
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | High7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.79% · top 43% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.5.
Weakness
Affected products
- affected < 2.8.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- Gogithub.com/DataDog/dd-trace-goGHSA-74j5-xf3v-crq8 (opens in a new tab)
- Gogithub.com/DataDog/dd-trace-go/v2GHSA-74j5-xf3v-crq8 (opens in a new tab)
References (4)
- https://github.com/DataDog/dd-trace-go/security/advisories/GHSA-74j5-xf3v-crq8 (opens in a new tab)x_refsource_CONFIRM
- https://github.com/DataDog/dd-trace-go/pull/4720 (opens in a new tab)x_refsource_MISC
- https://github.com/DataDog/dd-trace-go/commit/192712ba0291b2e89166259111ebb5e90c8f52df (opens in a new tab)x_refsource_MISC
- https://github.com/DataDog/dd-trace-go/releases/tag/v2.8.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-74j5-xf3v-crq8 (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-50274)Record last updated .