CVE-2024-27316

Apache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation frames

HIGH
7.5
CVSS Score
Published: April 4, 2024 at 07:21 PM UTC
Updated: June 17, 2026 at 07:19 AM UTC
3 products affected across 3 vendorsFedoraHTTP ServerOntap

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Severity
HIGH7.5
Exploit prediction
EPSS 91%
SSVC
No known exploit

Description

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response. If a client does not stop sending headers, this leads to memory exhaustion.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

2.4.17 ≤ v ≤ 2.4.582.4.17
Affected range stops below 2.4.59, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-770

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