Vulnerability details
CVE-2024-27316
Apache http_serverApache Software Foundation Apache HTTP Server
Apache HTTP Server: HTTP/2 DoS by memory exhaustion on endless continuation frames
CVSS 3.1
7.5High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CISA ADP / Vulnrichment (CISA-ADP) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Apache | http_server | 2.4.17 ≤ v ≤ 2.4.58 | CISA ADP / Vulnrichment |
| Apache Software Foundation | Apache HTTP Server | 2.4.17 ≤ v ≤ 2.4.58 | CVEProject cvelistV5 (CNA) |
References and advisories
10- https://httpd.apache.org/security/vulnerabilities_24.html vendor-advisory
- https://www.openwall.com/lists/oss-security/2024/04/03/16
- http://www.openwall.com/lists/oss-security/2024/04/04/4
- https://support.apple.com/kb/HT214119
- http://seclists.org/fulldisclosure/2024/Jul/18
- https://lists.debian.org/debian-lts-announce/2024/05/msg00013.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MIUBKSCJGPJ6M2U63V6BKFDF725ODLG7/
- https://security.netapp.com/advisory/ntap-20240415-0013/
- https://www.kb.cert.org/vuls/id/421644
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FO73U3SLBYFGIW2YKXOK7RI4D6DJSZ2B/
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Details
- Published
- 2024-04-04
- Last updated
- 2025-11-05
- State
- Published
- Assigner (CNA)
- apache
- Kolun priority
- 46 · Medium
Exploit prediction (EPSS)
88.75%
Probability of exploitation in 30 days
99.7%
Percentile (among all CVEs)
- 2026-11-0488.75%
- 2026-11-0391.32%
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-770Allocation of Resources Without Limits or Throttling