Home/CVE/In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request contai
CVE

CVE-2020-27223

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request contai

In Eclipse Jetty 9.4.6.v20170531 to 9.4.36.v20210114 (inclusive), 10.0.0, and 11.0.0 when Jetty handles a request containing multiple Accept headers with a large number of “quality” (i.e. q) parameters, the server may enter a denial of service (DoS) state due to high CPU usage processing those quality values, resulting in minutes of CPU time exhausted processing those quality values.

MEDIUM · CVSS 5.2 EPSS 0.33816
Schedule remediation
  • EPSS ≥ 0.10 - elevated exploitation probability
  • EPSS percentile: top 3% of all CVEs by exploitation likelihood
Sigma rules0 YARA rules0

Affected Products & Versions

17
eclipse jetty>= 9.4.7 and < 9.4.36
eclipse jettyall versions
apache nifiall versions
apache sparkall versions
netapp hciall versions

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
Maven org.eclipse.jetty:jetty-server MODERATE fixed in 9.4.37

Scoring & Timeline

5.2
MEDIUM · CVSS v3.1 · emo@eclipse.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD26 Feb 2021 · 10:15 PM
CVSS VectorCVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Vendor Advisories

11
suse-csafopenSUSE-SU-2024:10878-1
rhsaRHSA-2021:5134Critical
rhsaRHSA-2022:6407Moderate
rhsaRHSA-2021:3700Moderate
rhsaRHSA-2021:4767Important
🔗

References & Sources

67
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
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