CVE-2026-50276dd-trace-rb: Improper parsing of W3C baggage headers may lead to DoS
Updated under an hour ago ()
Does this affect you?
It affects DataDog dd-trace-rb. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
Do this next
Free account, 1 product
dd-trace-rb is Datadog's client library for Ruby. Prior to 2.32.0, W3C baggage extraction does not enforce DD_TRACE_BAGGAGE_MAX_ITEMS, which defaults to 64, or DD_TRACE_BAGGAGE_MAX_BYTES, which defaults to 8192, although those limits apply during baggage injection. A remote unauthenticated attacker can send a baggage HTTP header containing many comma-separated key-value pairs or a single very large value. The extraction path allocates entries while parsing the attacker-controlled header on every request, causing unbounded CPU and memory consumption in an HTTP service where the baggage propagation style is enabled, which is the default for most affected tracers. This can cause denial of service. This issue is fixed in version 2.32.0.
- CVSS
- 7.5 HIGH (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- GitHub_M
- NVD analysis
- Awaiting Analysis
- Record last updated
- Sep 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
DataDog dd-trace-rb datadog:dd_trace_rb (from the name) | before 2.32.0 | CNA record |
References
- https://github.com/DataDog/dd-trace-rb/security/advisories/GHSA-p5f6-rccc-jv98x-refsource-confirm
- https://github.com/DataDog/dd-trace-rb/pull/5672x-refsource-misc
- https://github.com/DataDog/dd-trace-rb/commit/361947090214488778ac4f144e219426ffcf92e6x-refsource-misc
- https://github.com/DataDog/dd-trace-rb/releases/tag/v2.32.0x-refsource-misc
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.