Description
An issue in the /util/http/prelude.rs endpoint of Datadog, Inc Vector v0.54.0 allows attackers to cause a Denial of Service (DoS) via a crafted request or payload.
Published: 2026-06-15
Score: 6.5 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

An issue in the /util/http/prelude.rs endpoint of Datadog Vector v0.54.0 allows attackers to cause a denial of service by sending a crafted request or payload, which can exhaust server resources or trigger a crash, rendering the service unavailable.

Affected Systems

Datadog Vector version 0.54.0 is affected. The vulnerability originates from the HTTP endpoint /util/http/prelude.rs, and no other product versions are explicitly listed as vulnerable.

Risk and Exploitability

The CVSS score of 6.5 indicates a medium severity vulnerability. With an EPSS score of less than 1%, the likelihood of exploitation is very low, and it is not listed in the CISA KEV catalog. The attack vector is inferred to be network‑based, requiring the attacker to send a malicious HTTP request to the exposed endpoint. If successful, the attacker can disrupt availability for the affected system.

Generated by OpenCVE AI on June 18, 2026 at 01:37 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade to a patched version of Datadog Vector if one is available; check the vendor’s official website or release notes for a fix.
  • Limit exposure of the /util/http/prelude.rs endpoint by implementing network access controls, such as firewall rules or ACLs, to allow traffic only from trusted IP addresses.
  • Apply input validation and rate‑limiting on the HTTP endpoint to constrain request size and frequency, mitigating resource exhaustion attacks in line with CWE‑400 best practices.

Generated by OpenCVE AI on June 18, 2026 at 01:37 UTC.

Tracking

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Advisories

No advisories yet.

History

Fri, 19 Jun 2026 09:45:00 +0000

Type Values Removed Values Added
First Time appeared Datadoghq
Datadoghq vector
Vendors & Products Datadoghq
Datadoghq vector

Thu, 18 Jun 2026 04:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted HTTP Request in Datadog Vector v0.54.0 Endpoint

Wed, 17 Jun 2026 05:15:00 +0000

Type Values Removed Values Added
Title Denial of Service via Crafted HTTP Request in Datadog Vector v0.54.0 Endpoint

Tue, 16 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-400
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 15 Jun 2026 19:30:00 +0000

Type Values Removed Values Added
Description An issue in the /util/http/prelude.rs endpoint of Datadog, Inc Vector v0.54.0 allows attackers to cause a Denial of Service (DoS) via a crafted request or payload.
References

Subscriptions

Datadoghq Vector
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-06-16T18:11:26.917Z

Reserved: 2026-04-06T00:00:00.000Z

Link: CVE-2026-39197

cve-icon Vulnrichment

Updated: 2026-06-16T18:11:22.992Z

cve-icon NVD

Status : Deferred

Published: 2026-06-15T20:16:27.677

Modified: 2026-06-16T19:16:37.097

Link: CVE-2026-39197

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-06-19T09:35:55Z

Weaknesses
  • CWE-400

    Uncontrolled Resource Consumption