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Vulnerabilities

Vulnerability · CVE-2024-27316

HTTP/2 incoming headers exceeding the limit are temporarily buffered in nghttp2 in order to generate an informative HTTP 413 response.

Published Apr 4, 2024 · catalog updated Jun 17, 2026 · http server

Last checked Nov 4, 2026. A connected source was read within the last 7 days.

Check this week

CVE-2024-27316 is not in CISA KEV. FIRST estimates a 88.75% chance of exploitation in the next 30 days. Check whether you run http server.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.5
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
88.75%
Remediation
Version ranges on file
Affected products
cpe apache/http server · cpe fedoraproject/fedora · cpe netapp/ontap

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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe apache/http server< 2.4.59
  • cpe fedoraproject/fedora38
  • cpe fedoraproject/fedora39
  • cpe fedoraproject/fedora40
  • cpe netapp/ontap9

How to fix CVE-2024-27316

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2024-27316 is not in CISA KEV. FIRST estimates a 88.75% chance of exploitation in the next 30 days. Check whether you run http server.

Which versions are affected?

Compare what you have installed with apache/http server < 2.4.59. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-770: Allocation of Resources Without Limits or Throttling. EPSS 88.75%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Apache HTTP Server security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

No dated events have been recorded yet.

Sources

  • CVE.orgVulnerability recordCVE-2024-27316

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2024-27316

    30-day exploitation probability 88.75%

    first.org
  • Monitored products — criticalVendor advisoryCVE-2024-27316

    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.

    nvd.nist.gov

References

Freshness

Last verified in this catalog Nov 4, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSNov 4, 2026
  • CVE.orgNov 4, 2026
  • Monitored products — criticalNov 4, 2026