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CVE-2020-27223 Eclipse Jetty

Affected softwareEclipse Jetty
Severity5.3 Medium CVSS 3.1 3 scores
Fixed in9.4.37, 10.0.1, 11.0.1
WeaknessUncontrolled resource consumption (CWE-400)
Published26 Feb 2021
Updated17 Jun 2026

Description

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.

CWE-407

Exploitation status

Forecast only (78% 30-day chance)

No exploit has been reported in the sources we check. EPSS puts this CVE in the top 0.42% of all scored CVEs. That is a model's forecast, not a report of exploitation.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment no assessment published
  • Indexed PoC 1 indexed, none at 5+ stars
  • EPSS 78% chance in 30 days A model's forecast, not a report of exploitation. Higher than 99.6% of all scored CVEs.

1 of these are GitHub repositories with fewer than 5 stars. They are listed for reference and don't count toward the exploitation status above.

IndexArtifactStarsFirst seen
GitHub PoC CVE-2020-27223 Vulnerability App & PoC 3 2021-03-19

Waratek protection

No exploit published

Within Waratek scope. In the sources we check, nobody has published exploit code for this CVE or reported it being exploited.

A public code fix exists: jetty/jetty.project 10e5317.

  • Protection none
  • Action unverified
  • Review automated Upstream data
  • Record active
Decided by Exploit code for this candidate, published in a reviewed catalogue or a GitHub repository with 5 or more stars, or in use per CISA or VulnCheck; not only a CISA verdict, a forecast, or nothing at all
Finding This CVE is not listed in CISA KEV or VulnCheck KEV, CISA Vulnrichment records no active exploitation, no reviewed exploit catalogue carries an entry for it, and no GitHub PoC repository for it has 5 or more stars. Nobody has published exploit code worth tracing, so it is not a candidate for a rule ahead of the ones where somebody has; an upstream fix path does exist, so the remediation half of the candidacy still holds. This is a statement about what has been published, not about whether the defect is reachable or serious.
Candidate fix https://github.com/jetty/jetty.project/commit/10e531756b972162eed402c44d0244f7f6b85131 : a commit: the change itself

CVSS

5.3 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L 3 metrics

We show the highest score from the newest CVSS version. Scores from different versions can't be compared, and the first score listed is sometimes a 0.0 placeholder.

VersionScoreBandVectorAssignerType
CVSS 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L NVD Primary published
CVSS 3.1 5.2 MEDIUM CVSS:3.1/AV:A/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H emo@eclipse.org Secondary
CVSS 2.0 4.3 none AV:N/AC:M/Au:N/C:N/I:N/A:P NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2021 ↗ CPU 2021-Q2 Oracle REST Data Services / General (Eclipse Jetty) (Prior to 20.4.3.050.1904)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle REST Data Services General (Eclipse Jetty) Prior to 20.4.3.050.1904

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.eclipse.jetty:jetty-server 9.4.6 9.4.37 unbounded
org.eclipse.jetty:jetty-server 10.0.0 10.0.1 unbounded
org.eclipse.jetty:jetty-server 11.0.0 11.0.1 unbounded

Products and versions

17 products, 25 version entries
SourceVendorProductSchemeAffected versions
nvd apache nifi generic 1.13.0
nvd apache solr generic 8.8.1
nvd apache spark generic 3.1.1
nvd debian debian linux generic 10.0
nvd eclipse jetty generic 9.4.6:20170531 · 9.4.6:20180619 · ≥ 9.4.7 and < 9.4.36 · 9.4.36 · 9.4.36:20210114 · 10.0.0 · 11.0.0
nvd netapp e-series santricity os controller generic ≥ 11.0.0 and ≤ 11.70.1
nvd netapp e-series santricity web services generic any version
nvd netapp element plug-in for vcenter server generic any version
nvd netapp hci generic any version
nvd netapp hci management node generic any version
nvd netapp management services for element software generic any version
nvd netapp snap creator framework generic any version
nvd netapp snapcenter generic any version
nvd netapp snapmanager generic any version
nvd netapp solidfire generic any version
nvd oracle rest data services generic < 20.4.3.50.1904
osv org.eclipse.jetty jetty-server generic ≥ 9.4.6 and < 9.4.37 · ≥ 10.0.0 and < 10.0.1 · ≥ 11.0.0 and < 11.0.1

References

URLTags
https://github.com/jetty/jetty.project/commit/10e531756b972162eed402c44d0244f7f6b85131 commit
https://github.com/eclipse/jetty.project/security/advisories/GHSA-m394-8rww-3jr7 WEB
https://lists.apache.org/thread.html/rd666e187ebea2fda8624683ab51e2a5ad2108f762d21bf1a383d7502@%3Creviews.spark.apache.org%3E WEB
https://lists.apache.org/thread.html/rc721fe2910533bffb6bd4d69ea8ff4f36066d260dbcd2d14e041614a@%3Cissues.spark.apache.org%3E WEB
https://lists.apache.org/thread.html/rc052fd4e9e9c01bead74c0b5680355ea5dc3b72d46f253cb65d03e43@%3Ccommits.druid.apache.org%3E WEB
https://lists.apache.org/thread.html/rb79b62ac3085e05656e41865f5a7efcbdc7dcd7843abed9c5fe0fef8@%3Cnotifications.zookeeper.apache.org%3E WEB
https://lists.apache.org/thread.html/raa6d60b00b67c0550672b4f506f0df75b323dcd25cf574e91e2f2dff@%3Cissues.zookeeper.apache.org%3E WEB
https://lists.apache.org/thread.html/ra47a26c008487b0a739a368c846e168de06c3cd118d31ecedafa679a@%3Cdev.kafka.apache.org%3E WEB
https://lists.apache.org/thread.html/ra40a88a2301a3da86e25b501ff4bc88124f2b816c2917d5f3497f8f0@%3Cnotifications.zookeeper.apache.org%3E WEB
https://lists.apache.org/thread.html/ra384892bab8c03a60613a6a9d5e9cae0a2b800fd882792a55520115e@%3Ccommits.kafka.apache.org%3E WEB

Timeline

Published2021-02-26By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.