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CVE-2023-40167 Jetty

Affected softwareJetty
Severity5.3 Medium CVSS 3.1 2 scores
Fixed in9.4.52, 10.0.16, 11.0.16, 12.0.1
WeaknessCWE-130
Published15 Sep 2023
Updated17 Jun 2026

Description

Jetty is a Java based web server and servlet engine. Prior to versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1, Jetty accepts the + character proceeding the content-length value in a HTTP/1 header field. This is more permissive than allowed by the RFC and other servers routinely reject such requests with 400 responses. There is no known exploit scenario, but it is conceivable that request smuggling could result if jetty is used in combination with a server that does not close the connection after sending such a 400 response. Versions 9.4.52, 10.0.16, 11.0.16, and 12.0.1 contain a patch for this issue. There is no workaround as there is no known exploit scenario.

Exploitation status

No public exploit

No exploit has been reported in the sources we check. Published 3 years ago.

  • CISA KEV not listed
  • VulnCheck KEV not listed
  • CISA Vulnrichment exploitation: none
  • Indexed PoC none indexed
  • EPSS 1.3% chance in 30 days

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.

  • 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/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6 : the maintainers' own security advisory: names the version that fixes it, so the fix is the difference between two releases

CVSS

5.3 MEDIUM v3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N 2 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:L/A:N security-advisories@github.com Secondary published
CVSS 3.1 5.3 MEDIUM CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N NVD Primary

Affected software and releases

Oracle advisories

AdvisoryTypeQuarterProducts Oracle names in its risk matrix
Oracle Critical Patch Update April 2025 ↗ CPU 2025-Q2 Oracle Retail Applications / Point of Sale (Eclipse Jetty) (19.0.6, 20.0.5, 21.0.4, 22.0.2, 23.0.2, 24.0.1)
Oracle Critical Patch Update July 2024 ↗ CPU 2024-Q3 Oracle Enterprise Manager / Agent Next Gen (Eclipse Jetty) (13.5.0.0)
Oracle Critical Patch Update April 2024 ↗ CPU 2024-Q2 Oracle Communications / Platform (Eclipse Jetty) (9.0.0.0)
Oracle Critical Patch Update January 2024 ↗ CPU 2024-Q1 Oracle Communications / Configuration (Eclipse Jetty) (23.3.0, 23.4.0)
Oracle Critical Patch Update October 2023 ↗ CPU 2023-Q4 Oracle Communications / General (Eclipse Jetty) (9.0.0-9.0.2)
Oracle Communications / General (Eclipse Jetty) (9.0.0-9.0.2)

Oracle components and versions

FamilyComponentVersions, as Oracle lists themRead as
Oracle Communications Configuration (Eclipse Jetty) 23.3.0, 23.4.0 23.3.0 · 23.4.0
Oracle Communications General (Eclipse Jetty) 9.0.0-9.0.2
Oracle Communications Platform (Eclipse Jetty) 9.0.0.0 9.0.0.0
Oracle Enterprise Manager Agent Next Gen (Eclipse Jetty) 13.5.0.0 13.5.0.0
Oracle Retail Applications Point of Sale (Eclipse Jetty) 19.0.6, 20.0.5, 21.0.4, 22.0.2, 23.0.2, 24.0.1 19.0.6 · 20.0.5 · 21.0.4 · 22.0.2 · 23.0.2 · 24.0.1

Maven packages

Affected and fixed versions, from OSV.dev
PackageIntroducedFixedLast affected
org.eclipse.jetty:jetty-http 9.0.0 9.4.52 unbounded
org.eclipse.jetty:jetty-http 10.0.0 10.0.16 unbounded
org.eclipse.jetty:jetty-http 11.0.0 11.0.16 unbounded
org.eclipse.jetty:jetty-http 12.0.0 12.0.1 unbounded

Products and versions

3 products, 16 version entries
SourceVendorProductSchemeAffected versions
nvd debian debian linux generic 10.0 · 11.0 · 12.0
nvd eclipse jetty generic ≥ 9.0.0 and < 9.4.52 · ≥ 10.0.0 and < 10.0.16 · ≥ 11.0.0 and < 11.0.16 · 12.0.0 · 12.0.0:beta0 · 12.0.0:beta1 · 12.0.0:beta2 · 12.0.0:beta3 · 12.0.0:beta4
osv org.eclipse.jetty jetty-http generic ≥ 9.0.0 and < 9.4.52 · ≥ 10.0.0 and < 10.0.16 · ≥ 11.0.0 and < 11.0.16 · ≥ 12.0.0 and < 12.0.1

References

URLTags
https://github.com/eclipse/jetty.project/security/advisories/GHSA-hmr7-m48g-48f6 advisory
https://github.com/eclipse/jetty.project PACKAGE
https://lists.debian.org/debian-lts-announce/2023/09/msg00039.html WEB
https://www.debian.org/security/2023/dsa-5507 WEB
https://www.rfc-editor.org/rfc/rfc9110#section-8.6 WEB

Timeline

Published2023-09-15By the CVE Program.
NVD record modified2026-06-17NVD's own last-modified date for this record.