CVE Database›CVE-2024-28182

CVE-2024-28182

nghttp2: CONTINUATION frames DoS

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Severity

Moderate

Red Hat Product Security

5.3

CVSS 3.1

Review impact separately from score.

Published · April 3, 2024

Updated · October 15, 2026

Description

A vulnerability was found in how nghttp2 implements the HTTP/2 protocol. There are insufficient limitations placed on the amount of CONTINUATION frames that can be sent within a single stream. This issue could allow an unauthenticated remote attacker to send packets to vulnerable servers, which could use up compute or memory resources to cause a Denial of Service.

Statement

Red Hat rates the security impact of this vulnerability as Moderate, in alignment with upstream nghttp2. The worst case scenario is excessive CPU utilization causing a denial of service. Once an attack has ended, the system should return to normal operations on its own.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.

CVSS / CWE

CVSS 3.1 · 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CWE-390 · Detection of Error Condition Without Action